Fjq. Monte et al., TOTAL ASSIGNMENT OF H-1 AND C-13 NMR-SPECTRA OF 2 ISOMERIC TRITERPENOIDS, Magnetic resonance in chemistry, 35(11), 1997, pp. 802-805
The complete H-1 and C-13 assignment of two closely related isomeric t
riterpenoid derivatives (methyl 2 alpha,3 beta-di-O-acetylolean-12-en-
28-oate and methyl 2 alpha,3 alpha-di-O-acetylurs-12-en-28-oate) is de
scribed, In addition to 1D NMR methods, 2D shift-correlated NMR techni
ques (COSY, NOESY, HMBC and HMQC) were used for the assignment. (C) 19
97 John Wiley & Sons, Ltd.