摘要
Two new diterpenoids, named isodoternifolins A(1) and B(2), together with seven known compounds were isolated from the ethanol extract of dried stems and leaves of Isodon ternifolius (D. Don) Kudo. The structures of 1 and 2 were determined as 7 beta-hydroxy-6 beta,11 alpha,15 beta-triacetoxy-7 alpha, 20-epoxy-entkaur-16-ene and 6 beta,7 beta,15 beta-trihydroxy-11 alpha-acetoxy-7 alpha,20-epoxy-entkaur-16-ene by chemical and spectral evidence respectively.
Two new diterpenoids, named isodoternifolins A(1) and B(2), together with seven known compounds were isolated from the ethanol extract of dried stems and leaves of Isodon ternifolius (D. Don) Kudo. The structures of 1 and 2 were determined as 7 beta-hydroxy-6 beta,11 alpha,15 beta-triacetoxy-7 alpha, 20-epoxy-entkaur-16-ene and 6 beta,7 beta,15 beta-trihydroxy-11 alpha-acetoxy-7 alpha,20-epoxy-entkaur-16-ene by chemical and spectral evidence respectively.
