2-(Butylcarbamoyl)-8,9-dimethoxy-5,6-dihydropyrrolo(2,1-a)isoquinoline-3-carboxylic acid 39731-66-3 5-22-05-00598 (Beilstein Handbook Reference) BRN 0455690 Pyrrolo(2,1-a)isoquinoline-3-carboxylic acid, 5,6-dihydro-2-(butylcarbamoyl)-8,9-dimethoxy-