Esters of 7-sulfenyliminocephem-4-carboxylic acids

Details Esters of 7-sulfenyliminocephem-4-carboxylic acids Esters of 7-sulfenyliminocephem-4-carboxylic acids

1980-12-05

1984-03-20

Coughlan, Jr., Paul M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

2602391, C07D50114

Patent

active

044382650

ABSTRACT:
Alkoxylated .beta.-lactam compound useful as an intermediate for various cephalosporin (or penicillin) derivatives which may be prepared by reacting a 7-sulfenylaminocephem compound (or a 6-sulfenylaminopenam compound) with an oxidizing agent or reacting a sulfinylaminocephem compound (or a 6-sulfinylaminopenam compound) with a dehydrating agent to give a sulfenyliminocephem compound (or a 6-sulfenyliminopenam compound) and reacting the latter compound with an alcohol in the presence of a base, an organic acid or a Lewis acid.

REFERENCES:
patent: 3234223 (1966-02-01), Fechtig et al.
patent: 3907788 (1975-09-01), Nudelman
patent: 3997528 (1976-12-01), Yoshioka et al.
patent: 4045438 (1977-08-01), Haviv et al.
patent: 4053469 (1977-10-01), Yoshioka et al.
patent: 4109084 (1978-08-01), Gordon

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