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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Detailed H-1 and C-13 NMR structural assignment of ent-polyalthic acid, a biologically active labdane diterpene

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Author(s):
Kovatch, Pedro Y. [1] ; Ferreira, Alexsandro E. [1] ; Ghizonni, Guilherme M. L. [1] ; Ambrosio, Sergio R. [1] ; Crotti, Antonio E. M. [2] ; Heleno, Vladimir C. G. [1]
Total Authors: 6
Affiliation:
[1] Univ Franca, Nucleo Pesquisas Ciencias Exatas & Tecnol, Av Dr Armando de Salles Oliveira 201, BR-14404600 Franca, SP - Brazil
[2] Univ Sao Paulo, Fac Filosofia Ciencias & Letras, Dept Quim, Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Letter
Source: Magnetic Resonance in Chemistry; v. 60, n. 2 SEP 2021.
Web of Science Citations: 0
Abstract

In this paper, a complete H-1 and C-13 NMR data assignment of ent-polyalthic acid, a biologically active labdane-type diterpene, is presented. The assignments were carried on the basis of spectroscopic data from H-1 NMR, C-13[H-1] NMR, gCOSY, gHMQC, and gHMBC experiments. Furthermore, a software-assisted methodology, using FOMSC3\_rm\_NB and NMR\_MultSim programs, supported the detailed and unequivocal assignment of H-1 and C-13 signals, allowing all hydrogen coupling constants to be determined and thus clarifying all hydrogen signal multiplicities. (AU)

FAPESP's process: 11/13630-7 - Chemical and pharmacological validation of extracts and active compounds of Copaifera species
Grantee:Jairo Kenupp Bastos
Support Opportunities: Research Projects - Thematic Grants