From the aerial parts of Vinca sardoa, seven indole alkaloids were iso
lated, conoflorine and six plumerane-type indolines, methyl-14,15-dide
hydro-12-hydroxyaspidofractinine, N(1)-methyl-14,15-didehydro- 12-meth
oxyaspidofractinine, N(1)-formyl-14,15-didehydroaspidofractinine, N(1)
-formyl-l4,15-didehydro- 12-hydroxyaspidofractinine and the known, ven
alstonine and N(1)-methyl-14,1 5-didehydroaspidofractinine. (C) 1997 E
lsevier Science Ltd.