Chemical Constituents of Daphne retusa

Fourteen compounds were isolated from the barks and stems of Daphne retusa.Their structures were identified as daphnodorin A(1),daphnodorin B(2),daphnodorin C(3),daphnodorin E(4),daphnodorin F(5),genkwanin(6),yuankanin(7),4′,5-dihydroxy-3′,7-dimethoxyflavone(8),daphneticin(9),5′′-demethoxydaphneticin(10),(–)-pinoresinol(11),daphneolon(12),syringin(13),and syringaldehyde(14) by spectroscopic analysis.All compounds were obtained from this plant for the first time.