Derivatives of sulfonyl indolizine, a process for their...

Details Derivatives of sulfonyl indolizine, a process for their... Derivatives of sulfonyl indolizine, a process for their...

C - Chemistry, Metallurgy

07

D

260/272.5

C07D 471/04 (2006.01)

Patent

CA 1335814

The object of the invention is derivatives of 3- sulfonyl indolizine of general formula; Image in which: R is selected from hydrogen, alkyl, cycloalkyl, substituted or unsubstituted phenyl, R1 is a protecting group for hydroxyl, R2 and R3, identical or different, is each selected from hydrogen, methyl or ethyl or halogen. These compounds are intermediates which can be used for the preparation of 3-aminoalkoxyphenylsulfonyl-indolizine. The invention also relates to a process for preparing 3-sulfonyl indolizine and a process for preparing 3-aminoalkoxyphenyl- sulfonyl-indolizine.

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