4-substituted oxazolones

Details 4-substituted oxazolones 4-substituted oxazolones

C - Chemistry, Metallurgy

07

D

260/311.4

C07D 263/44 (2006.01)

Patent

CA 1164872

ABSTRACT There are disclosed novel oxazolone compounds of the formula Image wherein R2 is (C1-C3)alkyl; and R6 is Image or Image in which W is fluoro; w1 is benzyloxy, chloro, phenoxy, nitro or trifluoromethyl; w2 is benzyloxy, phenoxy, nitro or trifluoromethyl; W3 is methyl, (C1-C2)alkoxy, methylthio, chloro or fluoro; W4 and W5 are each independently hydrogen, methyl, bromo, chloro, fluoro, cyano, nitro or trifluoromethyl; Y is hydrogen, methyl, benzyloxy, (C1-C2)alkoxy, chloro, bromo or fluoro; y1 is hydrogen or methoxy; and y2 is fluoro or chloro , which are useful as an intermediate for preparing oxazolidine-2,4-diones having hypoglycemic activity, and processes for preparing the oxazolone comp- ounds.

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