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US 4,399,279 AGranted
4H-1,4-Benzothiazine derivatives and intermediates thereto
AssigneeG.D. Searle & Co.
InventorsRobert J. Chorvat, Bipinchandra N. Desai, Suzanne E. Radak
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Abstract
4H-1,4 benzothiazine derivatives having anorectic activity and their preparation including intermediate compounds are disclosed.
Claims11
An intermediate compound of the formula ##STR23## wherein W represents CN, CONH.sub.2 or CON.dbd.CHNXY, wherein X represents a lower alkyl of 1 to 4 carbon atoms and Y represents a lower alkyl of 1 to 4 carbon atoms;
- and R" represents hydrogen, methoxy, trifluoromethyl or lower alkyl having 1 to 4 carbon atoms when R''' represents hydrogen, and when R" represents halogen, R''' represents hydrogen or halogen.
Dependencies are inferred from the claim text.