摘要:
Disclosed herein is a novel high .beta.-yield producing novel intermediates of the formula ##STR1## where R.sup.4 is ##STR2## useful in the synthesis of 1-.beta.-alkyl carbapenems.
摘要:
A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula ##STR1## wherein R" is a hydroxy-protecting group by use of a 6,6-dihaloanhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.
摘要:
Disclosed herein is a novel process using novel silyl enol ether intermediates of the formula ##STR1## to generate novel azetidione thiolester intermediates of the formula ##STR2## which can be used to form 1-.beta.-alkyl carbapenem antibiotics. It has now been discovered that if the R.sup.4 group is selected from a small group of moieties having the formula: ##STR3## an increased .beta.-yield of up to approximately 100% can be obtained.
摘要:
A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula ##STR1## wherein R" is a hydroxy-protecting group by use of a 6,6-dihaloanhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.
摘要:
The present invention provides compounds of formula I and pharmaceutically acceptable salts thereof. The compounds of the invention inhibit tyrosine kinase activity of growth factor receptors such as HER1, HER2 and HER4 thereby making them useful as antiproliferative agents. The compounds are also useful for the treatment of other diseases associated with signal transduction pathways operating through growth factor receptors.
摘要:
The present invention provides compounds of formula I and pharmaceutically acceptable salts thereof. The compounds of the invention inhibit tyrosine kinase activity of growth factor receptors such as HER1, HER2 and HER4 thereby making them useful as antiproliferative agents. The compounds are also useful for the treatment of other diseases associated with signal transduction pathways operating through growth factor receptors.
摘要:
There is provided novel cinnamide derivatives of Formula I: wherein R is C1-4 alkyl or trifluoromethyl; R1 is selected from the group consisting of pyridinyl, quinolinyl, thienyl, furanyl, 1,4-benzodioxanyl, 1,3-benzodioxolyl, chromanyl, indanyl, biphenylyl, phenyl and substituted phenyl in which said substituted phenyl is substituted with one or two substituents each independently selected-from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxy, trifluoromethyl, trifluoromethoxy and nitro; R2 and R3 are each independently selected from the group consisting of hydrogen, C1-4 alkyl, and halogen; R4 is selected from the group consisting of di(C1-4 alkyl)amino, trifluoromethoxy and optionally substituted morpholin-4-yl, pyridinyl, pyrimidinyl, piperazinyl, and pyrazinyl with one or two substituents in which said substituent is independently selected from the group consisting of C1-4 alkyl, aminomethyl, hydroxymethyl, chloro or fluoro; R5 is hydrogen, chloro or fluoro; or R4 and R5 taken together are —CH═CH—CH═CH— or —X(CH2)mY— in which X and Y are each independently selected from the group consisting of CH2, (CH2)nN(R9)— and O, wherein m is 1 or 2; n is 0 or 1; and R6, R7, and R8 are each independently selected from hydrogen, chloro and fluoro; and R9 is selected from the group consisting of hydrogen, C1-4 alkyl, hydroxyethyl, C1-4 alkoxyethyl, cyclopropylmethyl, —CO2(C1-4alkyl), and —CH2CH2NR10R11 in which R10 and R11 are each independently hydrogen or C1-4 alkyl, which are openers of the KCNQ potassium channels and are useful in the treatment of disorders which are responsive to the opening of the KCNQ potassium channels.
摘要翻译:提供式I的新颖的肉桂酰胺衍生物:其中R是C 1-4烷基或三氟甲基; R 1选自吡啶基,喹啉基,噻吩基,呋喃基,1,4-苯并二恶烷基,1,3-苯并二恶唑基,苯并二氢吡喃基,茚满基,联苯基,苯基和取代的苯基,其中所述取代的苯基被一个 或两个各自独立地选自卤素,C 1-4烷基,C 1-4烷氧基,三氟甲基,三氟甲氧基和硝基的取代基; R 2和R 3各自独立地选自氢,C 1-4烷基和卤素; R 4选自二(C 1-4烷基)氨基,三氟甲氧基和任选取代的吗啉-4-基,吡啶基,嘧啶基,哌嗪基和吡嗪基,其中一个或两个取代基独立地选自所述取代基 由C1-4烷基,氨基甲基,羟甲基,氯或氟组成的基团; R 5是氢,氯或氟; 或R 4和R 5一起为-CH = CH-CH = CH-或-X(CH 2)mY-,其中X和Y各自独立地选自CH 2,(CH 2)n N (R 9) - 和O,其中m为1或2; n为0或1; 和R 6,R 7和R 8各自独立地选自氢,氯和氟; 并且R 9选自氢,C 1-4烷基,羟乙基,C 1-4烷氧基乙基,环丙基甲基,-CO 2(C 1-4烷基)和-CH 2 CH 2 NR 10 R 11, 10>和R 11各自独立地是氢或C 1-4烷基,其是KCNQ钾通道的开放剂,并且可用于治疗对开放KCNQ钾通道有响应的病症。
摘要:
The 5,6-dihydronaphthalenyl derivatives of the formulae possess potent retinoid-like activity against dermatological diseases with a substantially reduced irritancy profile when administered topically.
摘要:
A dithioacetal carbapenem of the formula ##STR1## in which R.sup.1 is hydrogen or C.sub.1-6 alkyl;n is 0, 1 or 2;R.sup.3 is hydrogen or C.sub.1-6 alkyl;R.sup.2 isC.sub.1-6 alkyl,phenyl optionally substituted with cyano, --CO.sub.2 NH.sub.2, --CH.sub.2 OH, --CH.sub.2 NH.sub.2, --CONHNH.sub.2 or with up to 5 halogen atoms, C.sub.1-6 alkyl or C.sub.1-6 alkyloxy groups,phenylmethyl optionally substituted with up to 5 halogen atoms, C.sub.1-6 alkyl or C.sub.1-6 alkyloxy groups on the phenyl ring, ora radical represented by the formula--(CH.sub.2).sub.p --X in which p is 0 or 1; X is five-membered aromatic heterocyclic ring containing up to 1 sulfur, 1 oxygen or 4 nitrogen atoms, optionally substituted with a C.sub.1-6 alkyl group, or six-membered aromatic heterocylic ring containing up to 4 nitrogen atoms, optionally substituted with a C.sub.1-6 alkyl group.or a non-toxic pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.