Chemical Constituents of the Branches and Leaves of Picrasma chinensis P.Y. Chen and Tyrosinase Inhibiting Activity

Chemical Constituents of the Branches and Leaves of Picrasma chinensis P.Y. Chen and Tyrosinase Inhibiting Activity Quassinoids and alkaloids from the stems of Picrasma quassioides with nitric oxide inhibitory activity New Alkaloids, Picrasidines W, X and Y, from Picrasma quassioides and X-Ray Crystallographic Analysis of Picrasidine Q. A new cinnamamide derivative and two new β-carboline alkaloids from the stems of Picrasma quassioides New Alkaloids, Picrasidines W, X and Y, from Picrasma quassioides and X-Ray Crystallographic Analysis of Picrasidine Q. Studies on the alkaloids from Picrasma quassioides BENNET. V. Structures of picrasidines L,M, and P. Studies on the alkaloids from Picrasma quassioides BENNET. V. Structures of picrasidines L,M, and P. Studies on the alkaloids from Picrasma quassioides Bennet. VI. Structures of picrasidines N, O, and Q. Studies on the alkaloids from Picrasma quassioides Bennet. VI. Structures of picrasidines N, O, and Q. Phytochemical investigation on the leaves of Picrasma quassioides (D.Don) Benn. and the chemophenetics significance