Oxadiazines

Details Oxadiazines Oxadiazines

Filed on

1988-11-10

Date issued

1990-04-17

Examiner

Raymond, Richard L.

Patent Class

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

SubClass

Organic compounds

SubSubClass

Chalcogen in the nitrogen containing substituent

Other Related Categories

C07D27304

Type

Patent

Status

active

Patent number

049181882

Description

ABSTRACT:
Compounds of the formula (V), ##STR1## wherein R.sup.1 is certain optionally substituted alkyl groups, R.sup.2 is hydrogen, alkyl or optionally substituted henyl and R.sup.3 and R.sup.4 are independently alkyl or optionally substituted phenyl, or together form a C.sub.4-7 cycloalkyl ring; are described as useful intermediates in the preparation of carbapenem and penem antibiotics. Processes for their preparation are described as are certain oxadiazine intermediates.

REFERENCES:
patent: 4245089 (1981-01-01), Ponsford et al.

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