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).
Yang
Jie
J
Key laboratory of Modern Chinese Medicines (China pharmaceutical University), Ministry of Education, Nanjing, 210009, People's Republic of China.
Chen
Xiao-Qing
XQ
Liu
Xiao-Xiao
XX
Cao
Yuan
Y
Lai
Mao-Xiang
MX
Wang
Qiang
Q
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