摘要:
Disclosed herein are penicillanic acids and derivatives thereof which are substituted in the 6-position, processes for preparing such compounds and the utility thereof. The compounds of the invention have been found to be useful as antibacterial agents.
摘要:
An improved, versatile method for producing 7-cephalosporin derivatives having a 7-alkylthio or 7-arylthio group which comprises treating a 7-substituted imino halide, imino ether or iminothio ether of 7-aminocephalosporanic acid, 7-amino-3-desacetoxycephalosporanic acid and the like with a thiolating agent in the presence of a base, to obtain the thio derivative. These products are particularly useful for conversion to 7.alpha.-alkylthio or 7.alpha.-arylthio-7-acylamino intermediates which are converted to lower alkoxy cephalosporin derivatives useful as antibacterial agents.
摘要:
Treatment of a 7-imido-3-cephem carboxylic acid ester with a thiolating agent in the presence of a strong base yields a 4-(substituted thio)-2-cephem derivative which can be made to rearrange by use of a strong acid to obtain a 2-substituted thio-2-cephem derivative which has antimicrobial activity.
摘要:
6-Amino and 6-benzalimino-6-arylthio penicillins are disclosed. These compounds are useful as intermediates in the preparation of 6-acylamino-6-arylthio penicillins.
摘要:
6-Amino and 6-benzalimino-6-arylthio penicillins are disclosed. These compounds are useful as intermediates in the preparation of 6-acylamino-6-arylthio penicillins.
摘要:
Compounds having the formula (I), are useful as serine protease inhibitors, more particularly inhibitors of Factors VIIa, IXa, Xa, and/or XIa, wherein ring B is phenyl or pyridyl, W is preferably C(═O)NR4R5, L is a linker group, X2 comprises nitrogen or carbon, Z is an optionally-substituted monocyclic or bicyclic ring system, and R1, R2, R3, R4, R5 and R6 are as defined in the specification.
摘要翻译:具有式(I)的化合物可用作丝氨酸蛋白酶抑制剂,更具体地可用作因子VIIa,IXa,Xa和/或XIa的抑制剂,其中环B是苯基或吡啶基,W优选为C(= O)NR 4 R 5,L 是连接基团,X 2包括氮或碳,Z是任选取代的单环或双环环系,R1,R2,R3,R4,R5和R6如说明书中所定义。
摘要:
Novel compounds are provided which are inhibitors of MTP and thus are useful for lowering serum lipids and treating atherosclerosis and related diseases, and have the structure ##STR1## including pharmaceutically acceptable salts thereof or prodrug esters thereof, wherein q is 0, 1 or 2; R.sup.x is H, alkyl, aryl or halogen; A is (1) a bond; (2) --O--; or (3) ##STR2## B is: ##STR3## and wherein L.sup.2, L.sup.1, R.sup.1, R.sup.2, R.sup.3, R.sup.3', R.sup.3a, R.sup.3b, R.sup.4, R.sup.4', R.sup.5, X, ##STR4## are as defined herein.
摘要:
Cyclobutane derivatives of the formulas ##STR1## wherein P is a hydroxy protecting group and X is a leaving group are useful intermediates in the preparation of antiviral compounds.
摘要:
Antibacterial activity is exhibited by 3-acylamino-2-oxoazetidines having in the 1-position an activating group of the formula ##STR1## wherein R is ##STR2## and R.sub.4 is ##STR3##