Structural determination of two new triterpenoids from Potentilla discolor Bunge by NMR techniques.
Two new pentacyclic triterpenoids, 3alpha, 30-dihydroxylup-20(29)-en-27-oic acid (1) and (20S)-3alpha, 29-dihydroxylupan-27-oic acid (2) were isolated from the whole herbs of Potentilla discolor Bunge. The structures of these two new compounds were elucidated, and complete assignments of the (1)H and (13)C NMR spectroscopic data were achieved by 1D and 2D NMR experiments (HSQC, HMBC, (1)H-(1)HCOSY and ROESY).
Key laboratory of Modern Chinese Medicines (China pharmaceutical University), Ministry of Education, Nanjing, 210009, People's Republic of China.
Jie
J
Yang
Xiao-Qing
XQ
Chen
Xiao-Xiao
XX
Liu
Yuan
Y
Cao
Mao-Xiang
MX
Lai
Qiang
Q
Wang
D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D053978:Pentacyclic Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D031987:Potentilla / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
C530410:3alpha, 30-dihydroxylup-20(29)-en-27-oic acid; D053978:Pentacyclic Triterpenes; D014315:Triterpenes