2,3-Lower alkylenepenam-3-carboxylic acid derivatives and proces

Details 2,3-Lower alkylenepenam-3-carboxylic acid derivatives and proces 2,3-Lower alkylenepenam-3-carboxylic acid derivatives and proces

1975-06-13

1976-10-05

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D49944, C07D49946, C07D49950, C07D49958

Patent

active

039843971

ABSTRACT:
A process for the preparation of ##SPC1##
Which comprises reacting ##SPC2##
With a base, wherein Y is a residue of an acid, wherein R.sup.1 is amino, (halophenylimino-1-lower alkanoylthiomethyl)amino or acylamino and wherein R.sup.2 is carboxy or a protected carboxy, R.sup.3 is lower alkyl, R.sup.4 is lower alkylene and X is --S-- or ##EQU1##

REFERENCES:
patent: 3466275 (1969-09-01), Morin et al.

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