1.
Magn Reson Chem
; 46(1): 69-74, 2008 Jan.
Article
in English
| MEDLINE
| ID: mdl-18098158
ABSTRACT
Using modern NMR techniques, including 1H--13C and 1H--15N heteronuclear correlation experiments, the complete and unambiguous 1H, 13C, and 15N NMR chemical shift assignments of annomontine, methoxyannomontine, and N-hydroxyannomontine pyrimidine-beta-carboline alkaloids were performed. All 1H--1H scalar coupling constants and signal multiplicities were determined, and all nOe observations were also included.