Certain 7-oxo-4-thio-2,6-diazabicyclo-3,2,0-hept-2-ene compounds

Details Certain 7-oxo-4-thio-2,6-diazabicyclo-3,2,0-hept-2-ene compounds Certain 7-oxo-4-thio-2,6-diazabicyclo-3,2,0-hept-2-ene compounds

1976-02-17

1978-03-14

Gallagher, R. J.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

260239A, 260270C, 26029357, 260299, 2603085, 2603067E, 2603067C, 544 16, 544 18, 544 22, 544 14, 544 69, C07D51304

Patent

active

040791815

ABSTRACT:
An intermediate represented by following formula for synthesizing 3-hydroxy-3-cephem compounds. ##STR1## wherein A and B each is a hydrogen or amino substituent; R is a hydrogen or thiol substituent; Hal is a halogen; X is a hydroxy or carboxy protecting group; the broken line between A and R shows that when R and B are hydrogens, and A is a carboxylic acyl, the substituents can be combined to form an azetidinothiazoline bicyclic ring; and the enamine derivatives thereof.

REFERENCES:
patent: 3862164 (1975-01-01), Cooper

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