会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 27. 发明授权
    • Cyclopentanone derivatives
    • US4036856A
    • 1977-07-19
    • US741096
    • 1976-11-11
    • Nedumparambil A. AbrahamJehan F. BagliTibor Bogri
    • Nedumparambil A. AbrahamJehan F. BagliTibor Bogri
    • C07C405/00C07D307/88
    • C07C405/00
    • A process for preparing 11-deoxyprostaglandin E.sub.1, E.sub.2 and E.sub.3 and analogs thereof is realized by treating an appropriate di(lower)alkyl 3-(optionally substituted)-2-formylcyclopropane-1,1-dicarboxylate with an ylid prepared from a Wittig reagent of formula (AlkO).sub.2 POCH.sub.2 CO-(c)-CH.sub.3 in which Alk is an alkyl containing one to three carbon atoms and (c) is either (CH.sub.2).sub.q wherein q is an integer from 1 to 6 or cis CH.sub.2 CH=CH(CH.sub.2).sub.r wherein r is an integer from 0 to 3 to obtain the corresponding compound of formula: ##STR1## in which R.sup.2 is hydrogen, lower alkyl or CH.sub.2 OR.sup.3 wherein R.sup.3 is lower alkanoyl, R.sup.4 is lower alkyl and (c) is as defined herein. The latter compound is reduced with an alkali metal borohydride to yield the corresponding alcohol derivative. Condensation of this alcohol derivative or preferably its corresponding tetrahydropyran-2-yl ether derivative with a triester of formula CH(COOR.sup.6).sub.2 --(a)-(CH.sub.2)pCOOR in which R and R.sup.6 are lower alkyl, (a) is CH.sub.2 CH.sub.2, cis CH=CH or C.tbd.C and p is an integer from 2 to 4, gives the corresponding cyclopentanonetriester of formula ##STR2## in which (a), (c), p, R, R.sup.4 and R.sup.6 are as defined herein, R.sup.5 is hydrogen or tetrahydropyran-2-yl, respectively, and R.sup.7 is hydrogen or lower alkyl; the lactonized form of the cyclopentanonetriester being obtained from said alcohol derivative in which R.sup.2 is CH.sub.2 OR.sup.3 wherein R.sup.3 is lower alkanoyl. In the instance when R.sup.5 is tetrahydropyran-2-yl the cyclopentanonetriester is treated with an acid to give the corresponding compound in which R.sup.5 is hydrogen. The instant compound is then treated with a base under aqueous conditions, followed by optional esterification and acylation to give the desired 11-deoxyprostaglandin derivatives of formula ##STR3## in which (a), (c) and p, are as defined herein, (b) is trans CH=CH, R is hydrogen or lower alkyl, R.sup.1 is hydrogen or lower alkanoyl and R.sup.2 is hydrogen, lower alkyl or CH.sub.2 OR.sup.3 wherein R.sup.3 is hydrogen or lower alkanoyl. The derivatives possess prostaglandin-like biological activity and methods for their use are given.
    • 28. 发明授权
    • Prostaglandin intermediates
    • US4006136A
    • 1977-02-01
    • US489856
    • 1974-07-19
    • Nedumparambil A. AbrahamJehan F. BagliTibor Bogri
    • Nedumparambil A. AbrahamJehan F. BagliTibor Bogri
    • C07C45/67C07C49/20C07C49/203C07C405/00C07C69/74
    • C07C405/00C07C45/673C07C49/20C07C49/203
    • A process for preparing 11-deoxyprostaglandin E.sub.1, E.sub.2 and E.sub.3 and analogs thereof is realized by treating an appropriate di(lower)alkyl 3-(optionally substituted)-2-formylcyclopropane-1,1-dicarboxylate with an ylid prepared from a Wittig reagent of formula (AlkO).sub.2 PCCH.sub.2 CO-(c)-CH.sub.3 in which Alk is an alkyl containing one to three carbon atoms and (c) is either (CH.sub.2).sub.q wherein q is an integer from 1 to 6 or cis CH.sub.2 CH=CH(CH.sub.2).sub.r wherein r is an integer from 0 to 3 to obtain the corresponding compound of formula: ##STR1## in which R.sup.2 is hydrogen, lower alkyl or CH.sub.2 OR.sup.3 wherein R.sup.3 is lower alkanoyl, R.sup.4 is lower alkyl and (c) is as defined herein. The latter compound is reduced with an alkali metal borehydride to yield the corresponding alcohol derivative. Condensation of this alcohol derivative or preferably its corresponding tetrahydropyran-2-yl ether derivative with a triester of formula CH(COOR.sup.6).sub.2 -(a)-(CH.sub.2)pCOOR in which R and R.sup.6 are lower alkyl, (a) is CH.sub.2 CH.sub.2, cis CH=CH or CaC and p is an integer from 2 to 4, gives the corresponding cyclopentanonetriester of formula ##STR2## in which (a), (c), p, R, R.sup.4 and R.sup.6 are as defined herein, R.sup.5 is hydrogen or tetrahydropyran-2-yl, respectively, and R.sup.7 is hydrogen or lower alkyl; the lactonized form of the cyclopentanone-triester being obtained from said alcohol derivative in which R.sup.2 is CH.sub.2 OR.sup.3 wherein R.sup.3 is lower alkanoyl. In the instance when R.sup.5 is tetrahydropyran-2-yl the cyclopentanonetriester is treated with an acid to give the corresponding compound in which R.sup.5 is hydrogen. The instant compound is then treated with a base under aqueous conditions, followed by optional esterification and acylation to give the desired 11-deoxy-prostaglandin derivatives of the formula ##STR3## in which (a), (c) and p, are as defined herein, (b) is trans CH=CH, R is hydrogen or lower alkyl, R.sup.1 is hydrogen or lower alkanoyl and R.sup.2 is hydrogen, lower alkyl or CH.sub.2 OR.sup.3 wherein R.sup.3 is hydrogen or lower alkanoyl. The derivatives possess prostaglandin-like biological activity and methods for their use are given.
    • 30. 发明授权
    • Thiadiazolyl-amino derivatives of benzopyrans and indanes
    • 苯并吡喃和茚满的噻二唑基 - 氨基衍生物
    • US5206252A
    • 1993-04-27
    • US880433
    • 1992-05-08
    • John A. ButeraJehan F. Bagli
    • John A. ButeraJehan F. Bagli
    • C07D285/10C07D417/12
    • C07D285/10C07D417/12
    • The compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2, independent from each other, are selected from the following: C.sub.1-6 perfluoroalkoxy, C.sub.1-6 perfluoroalkyl, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, hydroxyl, C.sub.2-6 alkoxycarbonyl, nitro, cyano, halogeno, C.sub.1-6 alkylsulfonamido, C.sub.1-6 perfluoroalkylsulfonamido, amino, C.sub.2-6 alkanoylamino, C.sub.2-6 perfluoroalkanoylamino, C.sub.1-12 mono- or di-alkylamino, C.sub.1-6 alkylsulfonyl, C.sub.6-12 arylsulfonyl, carboxyl, C.sub.2-12 mono- or di-alkylcarbamoyl, or hydrogen; a and b together form an --O-- linkage or a direct bond; R.sub.3 and R.sub.4, independent from each other, are C.sub.1-6 alkyl when a and b form an --O-- linkage or, H or C.sub.1-6 alkyl when a and b form a direct bond; either R.sub.5 is hydrogen, hydroxyl, C.sub.2-6 alkanoyloxy, C.sub.7-12 aroyloxy, carbamoyloxy, formyloxy, C.sub.2-6 alkoxycarbonyloxy, mono or di C.sub.2-12 alkylcarbamoyloxy, and R.sub.6 is hydrogen, or R.sub.5 and R.sub.6 together are a bond; R.sub.7 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkanocarbonyl, or C.sub.16 alkanosulfonyl; X is selected from the following: --NR.sub.8 R.sub.9, wherein R.sub.8 and R.sub.9, independent from each other are hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkylcarbonyl, C.sub.7-12 arylalkyl, thienylmethyl, pyridinylmethyl, piperazinylmethyl, or pyrimidinylmethyl, or R.sub.8 and R.sub.9 taken together are polymethylene of 3-10 carbon atoms or R.sub.8 and R.sub.9 taken with the nitrogen atom to which they are attached complete a piperazine, morpholine, pyrroline, pyrrolidinone, imidazole, imidazolone, piperidine or piperidinone ring structure; or --OR.sub.10, wherein R.sub.10 is hydrogen, C.sub.1-6 alkyl or C.sub.2-6 alkylcarbonyl; and n is an integer from 0-2; or a pharmaceutically acceptable salt thereof, are useful antihypertensive, K channel activators.
    • 下式的化合物,其中R 1和R 2彼此独立地选自如下:C 1-6全氟烷氧基,C 1-6全氟烷基,C 1-6烷基,C 1-6烷氧基,羟基,C 2-6 烷氧基羰基,硝基,氰基,卤代C 1-6烷基磺酰氨基,C 1-6全氟烷基磺酰氨基,氨基,C 2-6烷酰基氨基,C 2-6全氟烷酰基氨基,C 1-12单烷基氨基或二烷基氨基,C 1-6烷基磺酰基,C 6-12芳基磺酰基, 羧基,C 2-12单 - 或二 - 烷基氨基甲酰基或氢; a和b一起形成-O-键或直接键; 当a和b形成-O-键时,R 3和R 4彼此独立地为C 1-6烷基,当a和b形成直接键时,R 3和R 4为H或C 1-6烷基; R5是氢,羟基,C2-6烷酰氧基,C7-12芳酰氧基,氨基甲酰氧基,甲酰氧基,C2-6烷氧基羰基氧基,一或二C2-12烷基氨基甲酰氧基,R6是氢,或R5和R6一起是一个键; R7是氢,C1-6烷基,C1-6链烷羰基或C16链烷磺酰基; X选自如下:-NR 8 R 9,其中R 8和R 9彼此独立地是氢,C 1-6烷基,C 2-6烷基羰基,C 7-12芳烷基,噻吩基甲基,吡啶基甲基,哌嗪基甲基或嘧啶基甲基,或R 8和R 9 一起是3-10个碳原子的聚亚甲​​基或与其所连接的氮原子一起取代的R 8和R 9完全是哌嗪,吗啉,吡咯啉,吡咯烷酮,咪唑,咪唑啉酮,哌啶或哌啶酮环结构; 或-OR 10,其中R 10是氢,C 1-6烷基或C 2-6烷基羰基; n为0-2的整数; 或其药学上可接受的盐是有用的抗高血压K通道激活剂。