Structural elucidation of limonoids and steroids from Trichilia connaroides
摘要:
Six limonoids, trijugins D-H (1-5) and methyl 8 alpha-hydroxy-8,30-dihydroangolensate (6), two degraded limonoids, trichiconnarins A and B (7-8), and a pregnane steroid, 30,4 alpha-dihydroxypregnan-21-one (9), along with the known trijugin C (10) and 3 beta,4 alpha-dihydroxypregnan- 16-one (11) were isolated from twigs and leaves of Trichilia connaroides. Their structures were established on the basis of extensive spectroscopic analysis. (c) 2008 Elsevier Ltd. All rights reserved.
Structural elucidation of limonoids and steroids from Trichilia connaroides
摘要:
Six limonoids, trijugins D-H (1-5) and methyl 8 alpha-hydroxy-8,30-dihydroangolensate (6), two degraded limonoids, trichiconnarins A and B (7-8), and a pregnane steroid, 30,4 alpha-dihydroxypregnan-21-one (9), along with the known trijugin C (10) and 3 beta,4 alpha-dihydroxypregnan- 16-one (11) were isolated from twigs and leaves of Trichilia connaroides. Their structures were established on the basis of extensive spectroscopic analysis. (c) 2008 Elsevier Ltd. All rights reserved.