... 2180 Vol. ... 1 2 RX Y CH(0H)CHC12 111 HH H 1' IV H C1 H ' 3' VH Cl Cl ' VIII CHa H H Y ' X IX CHs c1 H OR X CHa Cl C1 Chemical shift (5 ... Hsu, Papers presented at the Annual Meetings of The American Society of Pharma- cognosy, Lloydia, 35, 365 (1972); ibid., 36, 442 (1973). ...