砂地柏果实中2种二萜类杀虫活性成分的分离

Isolation and structural identification of two insecticidal diterpenoids from fruits of Sabina vulgaris Ant.

以粘虫幼虫为试虫,采用活性跟踪法,从砂地柏(SabinavulgarisAnt.)果实中分离出2种二萜化合物,经MS,1HNMR和13CNMR鉴定为4-表-松香醛和7,13-松香二烯-3-酮。活性测试结果表明,0.005g/mL4-表-松香醛和7,13-松香二烯-3-酮对3龄粘虫均具有较强的拒食及一定的毒杀活性。

With Mythimna separata Walker as the screening insect,two diterpenoids compounds were isolated from fruits of Sabina vulgaris Ant.According to the guidance of bioactivity assaying,their molecular structures were identified to be 4-epi-abietal and abieta-7,13-dien-3-one by MS,~1H NMR,~13C NMR.The result of bioassay showed that 0.005 g/mL 4-epi-abietal and abieta-7,13-dien-3-one exhibited good antifeeding and some poisonous activity against the 3rd-instar Mythimna separata.