Preparation of sulfonamides

Details Preparation of sulfonamides Preparation of sulfonamides

1999-07-15

2000-10-24

Shah, Mukund J.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544122, 544123, 544277, 544284, 544295, 544298, 544309, 544310, 544311, 544321, 544323, 544324, 544325, 544327, C07D41300

Patent

active

061369713

ABSTRACT:
The present invention provides a process for preparing 1,2-diheteroethylene sulfonamide of the formula: ##STR1## by reacting a pyrimidine monohalide of the formula: ##STR2## with a mono-protected 1,2-diheteroethylene anion of the formula M.sub.1 XCH.sub.2 CH.sub.2 YR.sub.5 and removing the protecting group, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, Z, X, Y, M, M.sub.1 and W are defined herein.

REFERENCES:
patent: 5292740 (1994-03-01), Burri et al.
patent: 5696116 (1997-12-01), Clozel et al.
patent: 5728706 (1998-03-01), Yamada et al.
patent: 5856484 (1999-01-01), Breu et al.

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