(6R)-(+)-Goniothalamin 17303-67-2 2H-Pyran-2-one, 5,6-dihydro-6-(2-phenylethenyl)-, (S-(E))- (9CI) 2H-Pyran-2-one, 5,6-dihydro-6-styryl-, (5S)-(+)- Goniothalamin Goniothalamine