... 2α,5α,10β-triacetoxy-14β-(3-hydroxy-2-methyl)-butyryloxy-4(2 0), 11-taxadiene ( 4) và β-sitosterol ( 9) và 04 chất từ phân đoạn ethyl acetat gồm: 13-dehydroxy baccatin III ( 5), paclitaxel ( 6), ( +)- catechin ( 7) và ( -)- epícatechin ( 8). ... d (1, 0) 1,88 d (2, 5) 1,89 d (1, 5) - - C-2 5,34 dd (1,5; 3, 5) 5,34 dd (1,5; 3, 5) 5,36 dd (2,2; 6, 7) 5,34 dd (1,5; 3, 5) 5,58 d (5, 7) 4,76 d (4, 5) C-3 2,92 d (3, 5) 2,92 d (3, 5) 2,94 ... (3, 5) 2,92 d (3, 5) 2,94 d (6, 5) 2,92 d (3, 5) 3,81 d (5, 7) 3,84 d (7, 5) C-5 5,29 t (1, 5) 5,28 t (1, 5) 5,30 t (2, 7) 5,28 t (1, 5) 5,01 d (6, 3) 5,01 dd (1,7; 9, 2) C-6 1,80 m 1,79 m 1,81 m 1,80...