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11. 发明专利

AT266624T 未知
公开(公告)号：AT266624T
公开(公告)日：2004-05-15
申请号：AT99909211
申请日：1999-03-17
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： TAGAMI YAYOI , KATSURA TADASHI , ITAYA NOBUSHIGE
IPC分类号： C07C227/18 , C07C229/08 , C07C229/36 , C07C303/32 , C07C309/39 , C07C309/30

12. 发明专利

AT261968T 未知
公开(公告)号：AT261968T
公开(公告)日：2004-04-15
申请号：AT01115637
申请日：2001-07-03
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： HAYASHI TAKETO , KUMAZAWA HIROHARU , NISHIKAWA JUNICHI
IPC分类号： C07D473/40
摘要： A process for preparing 2,6-dichloropurine comprising the step of chlorinating 2-amino-6-chloropurine with a chlorine source in the presence of a diazotizating agent. 2,6-Dichloropurine is used as a raw material for nucleoside and nucleotide analogues which are useful as pharmaceuticals.

13. 发明专利

DE60006857D1 未知
公开(公告)号：DE60006857D1
公开(公告)日：2004-01-08
申请号：DE60006857
申请日：2000-09-28
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： IISHI E , YOSHIKAWA KANAMI
IPC分类号： C07D401/04
摘要： A pyridinemethanol compound is an important intermediate for a mirtazapine which is useful as an antidepressant. The pyridinemethanol compound is obtained by reducing potassium pyridinecarboxylate represented by the formula (I): with a metal hydride.n

14. 发明专利

DK1050526T3 未知
公开(公告)号：DK1050526T3
公开(公告)日：2003-10-27
申请号：DK00303799
申请日：2000-05-05
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： SUGI KIYOSHI SUMIKA , SHINTAKU TETSUYA SUMIKA , KATSURA TADASHI SUMIKA , ITAYA NOBUSHIGE SUMIKA
IPC分类号： C07C67/04 , C07C253/30 , C07C255/19 , C07C69/63
摘要： A process for preparing a tert-alkyl carboxylic acid ester represented by the formula (III): wherein R is an organic group; and each of R and R is independently an alkyl group having 1 to 4 carbon atoms, comprising reacting a carboxylic acid represented by the formula (I): R -COOH wherein R is as defined above, with a vinylidene compound represented by the formula (II): wherein R and R are as defined above, in the presence of a phosphorus halide. The tert-alkyl carboxylic acid ester can be used as intermediates for pharmaceuticals such as antibiotics.

15. 发明专利

AT245136T 未知
公开(公告)号：AT245136T
公开(公告)日：2003-08-15
申请号：AT00303799
申请日：2000-05-05
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： SHINTAKU TETSUYA , SUGI KIYOSHI , KATSURA TADASHI , ITAYA NOBUSHIGE
IPC分类号： C07C67/04 , C07C253/30 , C07C255/19 , C07C69/63
摘要： A process for preparing a tert-alkyl carboxylic acid ester represented by the formula (III): wherein R is an organic group; and each of R and R is independently an alkyl group having 1 to 4 carbon atoms, comprising reacting a carboxylic acid represented by the formula (I): R -COOH wherein R is as defined above, with a vinylidene compound represented by the formula (II): wherein R and R are as defined above, in the presence of a phosphorus halide. The tert-alkyl carboxylic acid ester can be used as intermediates for pharmaceuticals such as antibiotics.

16. 发明专利

ES2180490T3 未知
公开(公告)号：ES2180490T3
公开(公告)日：2003-02-16
申请号：ES00115899
申请日：2000-07-25
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： YAMAZAKI SHIGEYA , YUMOTO HIROYUKI , IGI MASAMI
IPC分类号： C07D453/02
摘要： According to the method of the present invention, an alkali metal compound, dimethyl sulfoxide, trimethyloxosulfonium halide and 3-quinuclidinone are added in a specific order to give the following compound II. This compound is, without treatment or isolation, directly reacted with an alkali metal salt of phenothiazine to give the following compound III, from which the following compound I is obtained. During the production of compound I, a by-produced acidic gas is removed and water is added to ensure industrial, safe and efficient production of compound I at a constantly high yield. Inasmuch as the present invention enables production of the following highly pure compound A by eliminating hydrogen halide of compound I in glyme in the presence of at least one kind of a base selected from potassium hydroxide and potassium alkoxide, compound A having a high purity of not less than 85 mol% can be provided.

17. 发明专利

PT916674E 未知
公开(公告)号：PT916674E
公开(公告)日：2002-09-30
申请号：PT98309170
申请日：1998-11-10
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： HAYASHI TAKETO , YASUOKA JUNICHI , NISHIURA AKITO
IPC分类号： C07D473/00 , C07D473/18 , C07D473/32 , C07D473/40
摘要： A purine derivative having a cyclopropane ring represented by the formula (I): wherein A is -CH2- group or -CO- group; X is hydrogen atom, a halogen atom, an alkoxy group having 1 to 10 carbon atoms, or hydroxyl group; each of X , X , and X is independently hydrogen atom or a halogen atom; R is hydrogen atom, a halogen atom, or a protected or unprotected amino group; and each of R and R is independently hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 7 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 11 carbon atoms, or a substituted or unsubstituted acyl group having 1 to 7 carbon atoms, with proviso that in a case where A is -CO- group, neither R nor R is a substituted or unsubstituted acyl group having 1 to 7 carbon atoms, and each of X and X is independently a halogen atom, and a process for preparing the same.

18. 发明专利

ES2171623T3 未知
公开(公告)号：ES2171623T3
公开(公告)日：2002-09-16
申请号：ES96308119
申请日：1996-11-08
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： SAKAI MASATOSHI , FUJIWARA MASAKI , NAKAMATSU TOSHIO
IPC分类号： C07D473/40
摘要： A novel double cone-like crystal of 2-amino-6-chloropurine showing excellent filtration efficiency and containing little impurities and a method for preparing the double cone-like crystal of 2-amino-6-chloropurine from an acicular or irregular-shaped crystal of 2-amino-6-chloropurine.

19. 发明专利

IL146548D0 ANHYDROUS MIRTAZAPINE AND PROCESS FOR PREPARING THE SAME 未知
公开(公告)号：IL146548D0
公开(公告)日：2002-07-25
申请号：IL14654801
申请日：2001-11-19
申请人： SUMIKA FINE CHEMICALS CO LTD
IPC分类号： C07D471/14 , C07D

20. 发明专利

DE69713479D1 未知
公开(公告)号：DE69713479D1
公开(公告)日：2002-07-25
申请号：DE69713479
申请日：1997-12-23
申请人： SUMIKA FINE CHEMICALS CO LTD
发明人： KATSURA TADASHI , SHIRATANI HIROSHI , SUGI KIYOSHI , ITAYA NOBUSHIGE
IPC分类号： C07C253/30 , C07C255/50
摘要： Process for preparing 4'-methyl-2-cyanobiphenyl, comprising, catalytically hydrogenating at least one brominated cyanobiphenyl compound selected from 4'-dibromomethyl-2-cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl; and process for regenerating 4'-methyl-2-cyanobiphenyl, comprising, catalytically hydrogenating at least one brominated cyanobiphenyl compound selected from 4'-dibromomethyl-2-cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl, contained in a filtrate prepared by brominating 4'-methyl-2-cyanobiphenyl in a solvent; crystallizing 4'-bromomethyl-2-cyanobiphenyl from the resulting reaction mixture; and removing the resulting crystals from the reaction mixture by filtration. 4'-Methyl-2-cyanobiphenyl can be used as starting materials for 4'-bromomethyl-2-cyanobiphenyl.

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