Complete NMR data assignments for novel pterocarpans from Harpalyce brasiliana.
A NMR study of two new pterocarpans isolated from the roots of Harpalyce brasiliana is described. In addition to 1D NMR, 2D shift-correlated NMR pulse sequences ((1)H-(1)H-COSY, HSQC and HMBC) were used to establish the structures, and unambiguously perform the (1)H and (13)C chemical shift assignments.
Curso de Pós-Graduação em Química Orgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Cx. Postal12200, 60.021-940, Fortaleza-CE, Brazil.
Renata Mendonça
RM
Araújo
Sávio Moita
SM
Pinheiro
Mary Anne Sousa
MA
Lima
Edilberto Rocha
ER
Silveira
D002247:Carbon Isotopes; D007887:Fabaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards*; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry; D011522:Protons; D036343:Pterocarpans / Q000737:chemistry* / Q000302:isolation & purification; D012015:Reference Standards; D013237:Stereoisomerism
D002247:Carbon Isotopes; D011522:Protons; D036343:Pterocarpans