摘要:
Thio-.beta.-lactam penicillins of the general formula ##EQU1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, trihaloethyl, alkali metal or alkaline earth metal; R.sub.1 is hydrogen, lower alkyl, cycloalkyl, phenyl, lower alkoxyphenyl, phenoxy, phenyl-lower alkyl or certain heterocyclic groups; R.sub.2 is hydrogen, amino, carboxy or ureido; and n is 0 or 1; are useful as antimicrobial agents.
摘要:
New esters of Alpha -aminopenicillins having the formula
WHEREIN R is C2-C7 alkyl;
WHEREIN R2 H or OH, R3 H or halogen;
WHEREIN R1 is
OR -CH2NHCOO-R4 wherein R4 C1-C4 alkyl; R5 H, CH3 or C2H5, useful as active ingredients of pharmaceutical preparation; processes for their preparation; chemical intermediates useful in said preparation; and methods for the treatment of infectious diseases.
摘要:
A NEW CLASS OF PENICILLINS IS DISCLOSED, WHICH PENICILLINS CONTAIN A THIAZOLY, A THIAZOLYLMETHYL OR A SUBSTITUTED THIAAZOLYLMETHYL GROUP IN THE SIDE CHAIN. METHOD OF SYNTHESIS AND EVALUATIONS OF ANTI-BACTERIAL ACTIVITY ARE DESCRIBED.
摘要:
A series of novel antivirals are disclosed intended to attack a broad range of DNA and RNA viruses, in which nucleosides closely related entities are linked via reaction with a diacid chloride of the general structure COCl--(CH.sub.2).sub.n --COCl wherein n is two or greater.
摘要:
Broad spectrum antibiotics are provided which are compounds of the formula: ##STR1## wherein -W-R is a residue of a nucleophilic compound and R.sup.5 is hydroxyl or protected hydroxyl, or a pharmaceutically acceptable salt or 4-carboxy ester which is the alkoxymethyl, .alpha.-alkoxyethyl, .alpha.-alkoxy-.alpha.-substituted methyl, alkylthiomethyl, acyloxymethyl or .alpha.-acyloxy-.alpha.-substituted methyl ester thereof.