Hispidacine, an unusual 8,4′-oxyneolignan-alkaloid with vasorelaxant activity, and hispiloscine, an antiproliferative phenanthroindolizidine alkaloid, from Ficus hispida Linn. by Yap, V.A., Loong, B.J., Ting, K.N., Loh, S.H.S., Yong, Kien Thai, Low, Yun Yee, Kam, Toh Seok, Lim, K.H.