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for invention","granted":true,"earliest_filing_date":"1982-10-27","grant_date":"1984-08-22","anticipated_term_date":"2002-10-27","has_disclaimer":false,"patent_status":"EXPIRED","publication_count":2,"has_spc":false,"has_grant_event":true,"has_entry_into_national_phase":false},"abstract":{"en":[{"text":"A process for preparing 1-(3-benzyloxyphenyl)-1,1-dimethylheptane by reacting 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane in a solvent at -50° to 10°C with from 1 to 3 molar equivalents of trimethylaluminum. Also included are the novel intermediates 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane and 1-(3-benzyloxyphenyl)-1-methylheptan-1-ol and their preparation. The title compound is a valuable intermediate in the synthesis of certain analgesic agents.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"}]},"abstract_lang":["en"],"has_abstract":true,"claim":{"en":[{"text":"1. A process for preparing 1-(3-benzyloxyphenyl)-1,1-dimethylheptane which comprises reacting 1-(3-benzyloxyphenyl)-I-chloro-1-methylheptane in a solvent at a temperature of from -50°C. to 10°C. with from 1-3 molar equivalents of trimethylaluminum.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"2. A process according to claim 1, which is carried out at from -20°C. to 10°C.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"3. A process according to claim 1 or 2 wherein the solvent is dichloromethane.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"4. A process for making 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane which comprises reacting 1-(3-benzyloxyphenyl)-1 methylheptan-1-ol with excess aqueous hydrochloric acid.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"5. A process according to claim 4 wherein the molar ratio of hydrogen chloride to said heptan-1-ol is up to 10:1.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"6. 1-(3-Benzyloxyphenyl)-1-chloro-1-methylheptane.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"7. 1-(3-Benzyloxyphenyl)-1-methylheptan-1-ol.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"8. A process according to claim 1, wherein the 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane is prepared by:\n (a) reacting 3-hydroxyacetophenone with benzyl chloride or bromide so as to produce 3-benzyloxyacetophenone; \n (b) reacting the thus-produced 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by aqueous hydrolysis so as to produce 1-(3-benzyloxyphenyl)-1-methyl-heptan-1-ol; and \n (c) reacting the thus-produced 1-(3-benzyloxyphenyl)-1-methyl- heptan-l-ol with excess aqueous hydrochloric acid.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"9. A process for preparing 1-(3-benzyloxyphenyl)-1-methyl- heptan-l-ol, which comprises reacting 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by hydrolysis with water.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"CLAIMS FOR AUSTRIA","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"1. A process for preparing 1-(3-benzyloxyphenyl)-1,1-dimethylheptane which comprises reacting 1-(3-benzyloxyphenyl)-1-chloro-l-methylheptane in a solvent at a temperature of from -50°C. to 10°C. with from 1-3 molar equivalents of trimethylaluminum.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"2. A process according to claim 1, which is carried out at from -20°C. to 10°C.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"3. A process according to claim 1 or 2 wherein the solvent is dichloromethane.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"4. A process for making 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane which comprises reacting l-(3-benzyloxyphenyl)-l-methylheptan-l-ol with excess aqueous hydrochloric acid.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"5. A process according to claim 4 wherein the molar ratio of hydrogen chloride to said heptan-l-ol is up to 10:1.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"6. A process according to claim 1, wherein the 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane is prepared by:\n (a) reacting 3-hydroxyacetophenone with benzyl chloride or bromide so as to produce 3-benzyloxyacetophenone; \n (b) reacting the thus-produced 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by aqueous hydrolysis so as to produce 1-(3-benzyloxyphenyl)-1-methyl-heptan-1-ol; and \n (c) reacting the thus-produced 1-(3-benzyloxyphenyl)-l-methyl- heptan-l-ol with excess aqueous hydrochloric acid.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"},{"text":"7. A process for preparing 1-(3-benzyloxyphenyl)-l-methylheptan -1-ol, which comprises reacting 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by hydrolysis with water.","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"}]},"claim_lang":["en"],"has_claim":true,"description":{"en":{"text":"This invention relates to a novel.and efficient process for making 1-(3-benzyloxyphenyl)-1,1-dimethyl- heptane, a valuable intermediate for syntheses of 2-(cyclic- and acyclic- substituted)-5-(1,1-dimethylheptyl)phenols useful as analgesic agents as is described in U.S. Patents 4,285,867 and 4,284,829, issued August 25, 1981 and August 18, 1981, respectively. More specifically it comprises methylation of 1-(3-benzyloxyphenyl)-l-chloro-l-methylheptane by means of trimethylaluminum. Said chloroheptane reactant is prepared by chlorination with hydrochloric acid of 1-(3-benzyloxyphenyl)-l-methylheptan-l-ol, itself prepared by reaction of n-hexylmagnesium bromide with 3-benzyloxyphenylacetophenone which in turn is prepared by benzylation of 3-hydroxyacetophenone. The reaction.of trialkylaluminums with chlorohydrocarbons is reported by Miller in J. Org. Chem. 31, 908-912 (1966), by Kennedy, J. Org. Chem. 35, 532 (1970), and by references cited therein. Miller notes that of the reactions of halohydrocarbons with alkyl- aluminums, the preparation of alkylbenzenes by alkylation of (alpha-and beta- haloalkyl)benzenes is the most promising from a synthetic standpoint. Until the present invention, 1-(3-benzyloxyphenyl)-'1,1-dimethylheptane was prepared from methyl 3-hydroxybenzoate as described in U.S. Patent 4,285,867, issued August 25, 1981. The overall sequence comprised benzylation of the phenolic group to produce methyl 3-benzyloxybenzoate followed by reaction of said ether ester with methyl magnesium iodide to give 3-benzyloxy- benzene-2-propanol. Reaction of the thus-produced propanol derivative with hydrochloric acid afforded 2-(3-benzyloxyphenyl)-2-chloropropane which was then reacted with n-hexylmagnesium bromide to provide 1-(3-benzyloxyphenyl)-1,1-dimethylheptane. It has now been found that 1-(3-benzyloxyphenyl)-l,l-dimethylheptane can be readily prepared in much higher yields than afforded by the previously known synthesis. The process, a multistep process, comprises benzylation of 3-hydroxyacetophenone followed by reaction of the benzyl ether with n-hexylmagnesium bromide to produce 1-(3-benzyloxyphenyl)-1-methylheptan-1-ol. The alcohol is then treated with hydrochloric acid to afford the corresponding chloro compound which is then methylated by reaction with trimethyl aluminum to give 1-(3-benzyloxyphenyl)-1,1-dimethylheptane. The product thus obtained is more easily purified than is the product produced by the prior art process. The overall process described and exemplified herein for making 1-(3-benzyloxyphenyl)-1,1-dimethyl- heptane comprises, as first step, benzylation of 3-hydroxyacetophenone. The reaction is carried out by reacting 3-hydroxyacetophenone and benzyl chloride or . benzyl bromide in a reaction-inert solvent at a temperature of from about 50°C. to the reflux temperature of the solvent in the presence of an acid acceptor. In general, the 3-hydroxyacetophenone and benzyl chloride, or bromide, are reacted in equimolar or approximately equimolar proportions; i.e., from 1:1 to 0.9:1. From an economical standpoint a slight excess of benzylchloride or bromide is used to ensure greater utilization of the more expensive 3-hydroxyacetophenone reactant. The acid acceptor is used in equimolar amount based upon the amount of benzylchloride or bromide used. Suitable acid acceptors are alkali metal carbonates, alkaline earth metal carbonates and anion exchange resins such as those consisting of polystyrene beads having -N(C 2 H 5 ) 2 groups attached to the polymers. Suitable solvents for the reactions are acetone, methylethyl ketone, tetrahydrofuran, benzene, toluene and dioxane. The benzyl ether is separated from the reaction mixture by standard procedures and purified by vacuum distillation. The next step of the overall process comprises extension of the acetyl side chain to the desired length and simultaneous conversion of the keto group of said side chain to hydroxy. This is conveniently accomplished by the Grignard reaction with I-n-hexylmagnesium bromide in a reaction-inert solvent at a temperature of from about -10°C. to 50°C. Suitable solvents are tetrahydrofuran, dioxane or diethylether. An'excess, generally up to 5% excess, of magnesium is used to ensure more complete utilization of the n-hexylbromide reactant. The Grignard reagent and aceto- . 'phenone derivative are reacted in approximately equimolar proportions; i.e., from about 1.0:1.0 to about 1.10 to 1.0. The reaction mixture is then hydrolyzed by treatment with water to generate the alcohol. The thus-produced 1-(3-benzyloxyphenyl)-1-methyl- heptan-l-ol is then converted by reaction with excess aqueous hydrochloric acid to the corresponding 1-(3-benzyloxyphenyl)-l-chloro-l-methylheptane. The tertiary alcohol group is smoothly replaced by a chloro atom simply by agitating it with excess aqueous hydrochloric acid at ambient temperature. Molar ratios of up to 10 moles of HC1 per mole of hydroxy derivative are especially useful. Higher ratios can be used but offer no advantage. Temperatures above or below ambient temperature are operative but are generally avoided to eliminate the need for heating or cooling of the reaction mixture. The chloro derivative is recovered by extraction with a water immiscible solvent. The chloro derivative is then methylated by reaction with trimethlaluminum in a suitable solvent. Representative reaction-inert solvents are e.g. dichloromethane, hexane, xylene, toluene, diethylether; cyclopentane and methylchloride. The reaction is typically conducted at from about -50°C. to 10°C. (preferably -20° to 10°) for periods of from about 15-25 hours. The chloro derivative and trimethylaluminum are reacted in molar proportions of from 1:1 to 1:3. The methylated product is recovered by cautious hydrolysis of the reaction mixture, for example, by adding it to-ice with simultaneous addition of concentrated hydrochloric acid. The product is isolated by separating the organic phase from the hydrolysis mixture and removal of the organic solvent therefrom. The 1-(3-benzyloxyphenyl)-1,1-dimethylheptane thus prepared is a valuable intermediate, especially for the synthesis of analgesics. It can be converted by bromination with bromine according to known technology to 1-(3-benzyloxy-4-bromophenyl)-l,l-dimethylheptane, also known as (2-benzyloxy-l-bromo-4-(l,l-dimethylheptyl)-benzene. The following Examples illustrate the invention:- EXAMPLE 1 3-Benzyloxyacetophenone A. A mechanically stirred mixture of 1 kg. (7.35 mole) of 3-hydroxyacetophenone, 1.035 kg. (7.5 mole) anhydrous potassium carbonate and 0.945 kg. (7.5 mole) of benzylchloride in 4 1. of acetone was heated at reflux for 24 hours after which 0.1035 kg. (0.75 mole) portion of potassium carbonate and 0.0945 kg. (0.75 mole) portion of benzylchloride were added and refluxing continued. This addition was repeated after 72 hours of refluxing and refluxing continued for 96 hours. The reaction was cooled, filtered and the filtrate concentrated on a rotovapor. The filtrate was then treated with 0.202 kg. (2.0 mole) triethylamine and stirred overnight. The reaction was diluted with 1 liter ether and filtered. The filtrate was evaporated and the residue distilled to yield 1.429 kg. (86%) of the title compound as an oil. BP 160°C. (0.3 torr) IR (CHC1 ) 1695, 1605, 1595, 1493 and 1443 cm -1 . PMR (CDC1 3 ) 6 2.52 (s, CH 3 ), 5.03 (s, CH 2 ) and 7.0-7.7 (m, Ph). B. 1-(3-Benzyloxyphenyl)-1-methylheptan-1-ol To a slurry of 186 g. (7.65 mole) of magnesium in 3 . 5 1. of tetrahydrofuran was added 1.023 1. (7.29 mole) of 1-bromohexane over 2 hours. The resultant Grignard solution was allowed to cool to 25°C. A solution of 1.098 kg. (4.86 mole) of 3-benzyloxyacetophenone in 1 liter of tetrahydrofuran was added to the Grignard solution over a 3 hour period. The reaction temperature was maintained at 12°-18°C. with an ice bath. Upon completion of the addition the reaction was allowed to stir overnight at 25°C. A solution of 01.5 g. (3.42 mole) of water in 120 ml. tetrahydrofuran was added to the reaction over 15 minutes and, after stirring 20 minutes-longer 0.440 1. (1.1 mole) of 2.5M hexylmagnesium bromide in ether, was added. The reaction was stirred 20 hours longer and then quenched by slow addition to a mixture of 6 1. water and ice and 750 g. (14.2 mole) of ammonium chloride. The organic extract was removed and the aqueous extract was extracted with 1 liter of ether. The combined organic extract was washed with 1 liter of saturated sodium chloride, dried over magnesium sulfate and evaporated to yield 1.424 kg. (94%) of the title compound as an oil. PMR (CDC1 3 ) 6 0.83 (m, CH 3 ), 1.20 (m, CH 2 ), 1.51 (s, CH 3 ), 1.72 (s, OH), 1.8 (m, CH 2 ), 5.02 (s, CH 2 ) and 6.7-7.6 (m, PhH). EXAMPLE 2 1-(3-Benzyloxyphenyl)-1,1-dimethylheptane A. A mixture of 660 g. (2.11 mole) of 1-(3-benzyloxyphenyl)-l-methylheptan-l-ol and 1.70 1. of concentrated hydrochloric acid was vigorously stirred for 40 minutes. The reaction was diluted with 600 ml. of hexane and the layers separated. The organic extract was washed with 500 ml. saturated sodium bicarbonate, .500 ml. saturated sodium chloride, dried over magnesium sulfate and evaporated to yield 664 g. (2.0M) of intermediate 1-(3-benzyloxyphenyl)-l-chloro-l-methylheptane. B . A solution of the above chloride in 660 ml. dichloromethane was added to a solution of 947 ml. of 25% trimethylaluminum (3.28M) in hexane, dissolved in 1.9 1. of dichloromethane. The addition was completed over a period of 1.5 hours while the reaction temperature was maintained at -18° to -20°C. The reaction was stirred 1 hour longer at -15°C. and overnight at -3°C. The reaction was then quenched by slow addition to 2 1. of ice with simultaneous slow addition of 540 ml. of concentrated hydrochloric acid. The organic layer was separated and the aqueous layer extracted with 500 ml. dichloromethane. The combined organic extract was washed with 500 ml. saturated sodium bicarbonate, dried over magnesium sulfate and evaporated to an oil. The crude product was distilled to yield 525 g. (80%) of the title compound as an oil. BP 168°-176°C. (0.3 torr) IR (CHCl 3 ) 1604 and 1581 cm -1 HRMS (m/e) 310.2351 (M+, Calcd. for C22H300: 310.2289). 225.1304 (M+ - C 6 H 13' Cal cd. for C 16 H 17 0: 225.1275). EXAMPLE 2 (Cont.) PMR (CDCl 3 ) δ 0.82 (m, CH 3 ), 1.17 (m, CH 2 ), 1.23 (s, CH 3 ), 1.5 (m, CH 2 ), 5.00 (s, CH 2 ) and 6.6-7.5 (m, PhH).","lang":"en","source":"EPO_FULLTEXT","data_format":"ORIGINAL"}},"description_lang":["en"],"has_description":true,"has_docdb":true,"has_inpadoc":true,"has_full_text":true,"biblio_lang":"en"},"jurisdiction":"EP","collections":[],"usersTags":[],"lensId":"139-751-777-778-312","publicationKey":"EP_0079168_A1","displayKey":"EP 0079168 A1","docAssets":{"lensId":"150-323-954-108-465","pdfUrl":"https://www.lens.org/images/patent/EP/0079168/B1/EP_0079168_B1.pdf","images":[{"thumb":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/10pc/00000001.png","full":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/full/00000001.png"},{"thumb":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/10pc/00000002.png","full":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/full/00000002.png"},{"thumb":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/10pc/00000003.png","full":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/full/00000003.png"},{"thumb":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/10pc/00000004.png","full":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/full/00000004.png"},{"thumb":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/10pc/00000005.png","full":"https://s3-us-west-2.amazonaws.com/lens-resource/patent/EP/B1/0079/0079168/image/page/full/00000005.png"}],"fallover":true},"countryName":"EUROPEAN PATENT OFFICE","inventorModel":{"inventors":[{"name":{"value":"MELVIN LAWRENCE SHERMAN","valueNormalised":"Melvin Lawrence Sherman"},"inventorship":null}],"inventorships":[],"unmatchedInventorships":[],"activeUserHasInventorship":false},"simpleFamilyId":192423279,"citesPatentCount":5,"countrySpec":{"countryName":"EUROPEAN PATENT OFFICE","description":"APPLICATION PUBLISHED WITH Search Report","rule":"","docType":"PATENT_APPLICATION"},"pageTitle":"EP 0079168 A1 - Process for making 1-(3-benzyloxyphenyl)-1,1-dimethylheptane and intermediates therefor.","documentTitle":"Process for making 1-(3-benzyloxyphenyl)-1,1-dimethylheptane and intermediates therefor."},"claims":{"source":"xml_claims","claims":[{"lines":["1. A process for preparing 1-(3-benzyloxyphenyl)-1,1-dimethylheptane which comprises reacting 1-(3-benzyloxyphenyl)-I-chloro-1-methylheptane in a solvent at a temperature of from -50°C. to 10°C. with from 1-3 molar equivalents of trimethylaluminum."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["2. A process according to claim 1, which is carried out at from -20°C. to 10°C."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["3. A process according to claim 1 or 2 wherein the solvent is dichloromethane."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["4. A process for making 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane which comprises reacting 1-(3-benzyloxyphenyl)-1 methylheptan-1-ol with excess aqueous hydrochloric acid."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["5. A process according to claim 4 wherein the molar ratio of hydrogen chloride to said heptan-1-ol is up to 10:1."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["6. 1-(3-Benzyloxyphenyl)-1-chloro-1-methylheptane."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["7. 1-(3-Benzyloxyphenyl)-1-methylheptan-1-ol."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["8. A process according to claim 1, wherein the 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane is prepared by:
(a) reacting 3-hydroxyacetophenone with benzyl chloride or bromide so as to produce 3-benzyloxyacetophenone;
(b) reacting the thus-produced 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by aqueous hydrolysis so as to produce 1-(3-benzyloxyphenyl)-1-methyl-heptan-1-ol; and
(c) reacting the thus-produced 1-(3-benzyloxyphenyl)-1-methyl- heptan-l-ol with excess aqueous hydrochloric acid."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["9. A process for preparing 1-(3-benzyloxyphenyl)-1-methyl- heptan-l-ol, which comprises reacting 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by hydrolysis with water."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["CLAIMS FOR AUSTRIA"],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["1. A process for preparing 1-(3-benzyloxyphenyl)-1,1-dimethylheptane which comprises reacting 1-(3-benzyloxyphenyl)-1-chloro-l-methylheptane in a solvent at a temperature of from -50°C. to 10°C. with from 1-3 molar equivalents of trimethylaluminum."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["2. A process according to claim 1, which is carried out at from -20°C. to 10°C."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["3. A process according to claim 1 or 2 wherein the solvent is dichloromethane."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["4. A process for making 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane which comprises reacting l-(3-benzyloxyphenyl)-l-methylheptan-l-ol with excess aqueous hydrochloric acid."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["5. A process according to claim 4 wherein the molar ratio of hydrogen chloride to said heptan-l-ol is up to 10:1."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["6. A process according to claim 1, wherein the 1-(3-benzyloxyphenyl)-1-chloro-1-methylheptane is prepared by:
(a) reacting 3-hydroxyacetophenone with benzyl chloride or bromide so as to produce 3-benzyloxyacetophenone;
(b) reacting the thus-produced 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by aqueous hydrolysis so as to produce 1-(3-benzyloxyphenyl)-1-methyl-heptan-1-ol; and
(c) reacting the thus-produced 1-(3-benzyloxyphenyl)-l-methyl- heptan-l-ol with excess aqueous hydrochloric acid."],"number":-1,"annotation":false,"title":false,"claim":true},{"lines":["7. A process for preparing 1-(3-benzyloxyphenyl)-l-methylheptan -1-ol, which comprises reacting 3-benzyloxyacetophenone with n-hexylmagnesium bromide followed by hydrolysis with water."],"number":-1,"annotation":false,"title":false,"claim":true}]}},"filters":{"npl":[],"notNpl":[],"applicant":[],"notApplicant":[],"inventor":[],"notInventor":[],"owner":[],"notOwner":[],"tags":[],"dates":[],"types":[],"notTypes":[],"j":[],"notJ":[],"fj":[],"notFj":[],"classIpcr":[],"notClassIpcr":[],"classNat":[],"notClassNat":[],"classCpc":[],"notClassCpc":[],"so":[],"notSo":[],"sat":[]},"sequenceFilters":{"s":"SEQIDNO","d":"ASCENDING","p":0,"n":10,"sp":[],"si":[],"len":[],"t":[],"loc":[]}}