92587-11-6Relevant academic research and scientific papers
Cell differentiation-inducing diterpenes from Andrographis paniculata NEES
Matsuda,Kuroyanagi,Sugiyama,Umehara,Ueno,Nishi
, p. 1216 - 1225 (1994)
The methanol extract of the aerial part of Andrographis paniculata NEES showed potent cell differentiation-inducing activity on mouse myeloid leukemia (MI) cells. From the ethyl acetate-soluble fraction of the methanol extract, six new diterpenoids of ent-labdane type, 14-epi-andrographolide (3), isoandrographolide (4), 14-deoxy-12-methoxyandrographolide (7), 12-epi- 14-deoxy-12-methoxyandrographolide (8), 14-deoxy-12-hydroxyandrographolide (9) and 14-deoxy-12-hydroxyandrographolide (10) as well as two new diterpene glucosides, 14-deoxy-11, 12-didehydroandrographi-side (12) and 6'- acetylneoandrographolide (14), and four new diterpene dimers, bis- andrograpolides A (15), B (16), C (17) and D (18), were isolated along with six known compounds. The structures of the diterpenoids were determined by means of spectral methods. Some of these compounds showed potent cell differentiation-inducing activity towards M1 cells.
