Plant Diversity ›› 1998, Vol. 20 ›› Issue (04): 1-3.
• Articles •
JIN Qi- Duan,HE Bi - He
Two new labdanoids, forskolin E and F, with forskolin A, B, C and D, have been isolated from the chloroform extract of the whole plants of Coleus forskohlii. The chemical structures of the two minor constituents have been established as lα, 7β- diacetoxy- 8,13 epoxy- 6β- hydroxylabd- 14- en- 11 - one(l) and 7β-acetoxy- 8,13 - epoxy- 6β,9a- dihydroxylabd - 14- en- 11 - one(2), respectively, on the basis of detailed spectroscopic analysis and all assignments were supported by 1H -1H COSY, HMBC and HMOC spectrum (see table 1).
Forskolin E and F
JIN Qi- Duan,HE Bi - He. Minor Constituents from Coleus forskohlii[J]. Plant Diversity, 1998, 20(04): 1-3.
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