138842-99-6

Aspidospermidin-21-oic acid,3,4-didehydro-16,19-dihydroxy-17- methoxy-1-(1-oxopropyl)-15-(2,3,5,6-tetrahydro- 8-hydroxy-3-methyl-6-oxo-1Hindolo[ 3,2,1-de][1,5]naphthyridin-11b(4H)-yl)- ,&ccedil