Thiazinobenzimidazole derivatives

Details Thiazinobenzimidazole derivatives Thiazinobenzimidazole derivatives

1982-09-13

1984-05-22

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

544 34, C07D51304

Patent

active

044501099

ABSTRACT:
The specification describes novel thiazinobenzimidazole derivatives represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2 and X represent a wide variety of substituent groups respectively. The above thiazinobenzimidazole derivatives may be prepared by reacting corresponding 2-hydroxymethyl thiazinobenzimidazole derivatives with corresponding reactive derivatives of carboxylic acid or halogenide or by reacting 2-p-toluenesulfonyloxymethyl-thiazinobenzimidazole derivatives with sodium azides, thiols, phenols or amines. The above thiazinobenzimidazole derivatives wherein X is OH may be prepared by reducing their corresponding 2-alkoxycarbonyl derivatives. Where X represents a p-toluenesulfonyloxy group, the thiazinobenzimidazole derivatives may be obtained by reacting corresponding 2-hydroxymethyl-thiazinobenzimidazole derivatives with p-toluenesulfonyl chloride. Where X stands for an N-substituted 2-(homo)piperazinomethyl group, 2-(homo)piperazinomethyl-thiazinobenzimidazole derivatives are reacted with reactive compounds to introduce the desired substituent groups. The thiazinobenzimidazole derivatives according to this invention are useful as medicament for circulatory systems.

REFERENCES:
patent: 4369309 (1983-01-01), Eto et al.

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