摘要:
Cephalosporins represented by the formulaX--S--Ywherein X is a deacetoxycephalosporinyl group and Y is a 6-membered heterocyclic group containing 1-3 nitrogens at least one of which is substituted and at least one of which is adjacent to a carbonyl group, said heterocyclic group containing one or more ring substituents and being characterized by being non-aromatic and non enolizable to an aromatic form.
摘要:
The present disclosure relates to intermediates 2,2,3-endo-trimethyl-7-anti-amino-norbornanes and N-substituted analogs thereof. In particular the aforesaid compounds have a conventional protective group on the amino moiety and also hydroxymethyl or p-toluenesulfonyl oxymethyl groups in the 3-position.
摘要:
The acyl derivatives provided by the present invention are compounds of the general formula ##STR1## wherein R represents furyl, thienyl or phenyl optionally substituted by halogen, hydroxy, lower alkoxy or lower alkyl, R.sub.1 represents alkyl or aminocarbonylmethyl and X represents a group of the formula ##STR2## in which one of the two symbols R.sub.2 and R.sub.3 or R.sub.4 and R.sub.5 represents hydrogenand the other represents lower alkyl, carboxymethyl or sulphomethyl, and the pharmaceutically acceptable salts of said compounds and hydrates of said salts.Also disclosed are a process for the manufacture of the compounds and pharmaceutical preparations therefor.The compounds of the present invention have antibiotic activity, especially bactericidal activity.