Department of Chemistry, University of Kashmir, Srinagar 190006, Jammu and Kashmir, India.
Nat Prod Res. 2012;26(7):654-8. doi: 10.1080/14786419.2010.541886. Epub 2011 Aug 18.
Phytochemical investigation of the leaves of Arctium lappa led to the isolation of two triterpenoids, characterised by NMR, IR and MS as 3α-hydroxylanosta-5,15-diene and 3α-acetoxy-hop-22(29)-ene. 3α-hydroxylanosta-5,15-diene is a new triterpenoid and is isolated for the first time from this genus.
从牛蒡叶中分离得到两种三萜类化合物,通过 NMR、IR 和 MS 鉴定为 3α-羟基羊毛甾-5,15-二烯和 3α-乙酰氧基-羊毛甾-22(29)-烯。3α-羟基羊毛甾-5,15-二烯为新的三萜类化合物,首次从该属植物中分离得到。