Full NMR analysis of annomontine, methoxy- annomontine and N-hydroxyannomontine pyrimidine-beta-carboline alkaloids |
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Authors: | Costa Emmanoel Vilaça Pinheiro Maria Lúcia Belém de Souza Afonso Duarte Leão Dos Santos Adriane Gama Campos Francinete Ramos Ferreira Antonio Gilberto Barison Andersson |
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Affiliation: | 1. Departamento de Química, Universidade Federal do Amazonas (UFAM), Av. Gen. Rodrigo Otávio Jord?o Ramos, 3000, Coroado, CEP 69077‐000, Manaus, AM, Brazil;2. Laboratório de Ressonancia Magnética Nuclear ‐ Departamento de Química, Universidade Federal de S?o Carlos (UFSCar), Via Washington Luís, Km 235, C.P. 676, CEP 13565‐905, S?o Carlos, SP, Brazil |
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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. |
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Keywords: | NMR 1H 13C 15N 2D‐NMR chemical shift assignments pyrimidine‐β‐carboline alkaloids annomontine methoxyannomontine N‐hydroxyannomontine |
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