103628-60-0Relevant articles and documents
PROCESS FOR PREPARING 3-(2-(DIMETHYLAMINO)ETHYL)-N- METHYL-1H-INDOLE-5-METHANESULFONAMIDE AND PRODUCT THEREOF
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Page/Page column 10; 12-13, (2009/04/25)
The present invention relates to an improved process for the preparation of 3-(2- (dimethylamino) ethyl)-N-methyl- 1 H-indole-5-methanesulfonamide (sumatriptan) acid addition salt and the base having enhanced yield and purity. Further the present invention also provides a novel crystalline sumatriptan base.