Process for the preparation of [1,4,5]-oxadiazepine derivatives

Details Process for the preparation of [1,4,5]-oxadiazepine derivatives Process for the preparation of [1,4,5]-oxadiazepine derivatives

2002-12-17

2009-10-06

Qazi, Sabiha (Department: 1612)

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C504S218000

Reexamination Certificate

active

07598376

ABSTRACT:
A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of N,N′-diacyl-hydrazines with 2,2′-disubstituted diethyl ethers to form 4,5-diacyl-[1,4,5]-oxadiazepines and reaction of the latter compounds with a hydrohalic acid.

REFERENCES:
patent: 5015637 (1991-05-01), Effland et al.
patent: 2009/0124800 (2009-05-01), Faber et al.
patent: 0117973 (2001-03-01), None
Kotelko, Barbara et al., AN 103:142028 CASREACT, Hexahydro-1,4,7-oxadiazepine derivatives, abstract of PL 123646. (Nov. 30, 1982).
Kotelko, B. et al. AN 103:142027 CASREACT, abstract of PL 123647.
Krakowiak et al. AN 97:198176 CASREACT, Acta Ploniae Pharmaceutica (1981), 38(6), 673-8.

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