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从马尾松(Pinusmassoniana)枝条中分离得到21个已知化合物,经波谱学方法将其结构鉴定为7,13,15-abietatrien-18-oic acid(1),12-methoxy-7,13-abietadien-18-oica cid(2),15-methoxy-7,13-abietadien-18-oic acid methyl ester(3),12-hydroxydehydroabietic acid(4),dehydroabietic acid(5),15-hydroxydehydroabi-etic acid methyl ester(6),3β-methoxyserrat-14-en-21-one(7),3β-methoxy-30-hydroxyserrat-14-en-21-one(8),β-sitosterol(9),(±)-pinoresinol(10),(±)-matairesinol(11),(-)-nortrachelogenin(12),balanophonin(13),cedrusin(14),pinocembin(15),5-methoxypinosylvin(16),pinosylvin(17),1,2-bis-(4-hydroxy-3-methoxyphenyl)-propane-1,3-diol(18),cleistophostaudin(19),lignoceryl ferulate(20)和coniferaldehyde(21)。其中化合物12,14,18和21在DPPH抗氧化模型上显示一定的抗氧化活性,其EC50值分别为11.36,6.76,14.07和13.33μg·mL-1。化合物2～4,6～8,10,11,13,15～21均是从该植物中首次分离得到。
Twenty-one known compounds were isolated from the branches of Pinus massoniana and their structures were identified spectroscopically as 7,13,15-abietatrien-18-oic acid (1), 12-methoxy-7,13-abietadien -18-oica cid (2), 15-methoxy-7,13-abietadien-18-oic acid methyl ester (3), 12-hydroxydehydroabietic acid (4), dehydroabietic acid β-sitosterol (9), (±) - β-sitosterol (6), 3β-methoxyserrat- (-) - nortrachelogenin (12), balanophonin (13), cedrusin (14), pinocembin (15), 5-methoxypinosylvin (16), pinosylvin (17) 1,2-bis- (4-hydroxy-3-methoxyphenyl) -propane-1,3-diol (18), cleistophostaudin (19), lignoceryl ferulate (20) and coniferaldehyde (21). Among them, compounds 12, 14, 18 and 21 exhibited some antioxidant activity on the DPPH antioxidant model with EC50 values of 11.36, 6.76, 14.07 and 13.33 μg · mL-1, respectively. Compounds 2 ~ 4,6 ~ 8,10,11,13,15 ~ 21 were isolated from the plant for the first time.