16H-1,24:6,9-Dietheno-11,15-metheno-2H-pyrido(2',3':17,18)(1,11)dioxacycloeicosino(2,3,4-ij)isoquinoline, 3,5,16a,17,18,19-hexahydro-12,21,22,26-tetramethoxy-17-methyl-, (R)- 19634-27-6 Dehatrine