Authors
Advisor(s)
Abstract(s)
Three labdane diterpenoids were isolated from an acetone extract of Plectranthus ornatus. Their structures, closely related to that of forskolin, were determined by NMR studies. Unambiguous and complete assignments of the H-1 and C-13 NMR chemical shifts for these substances are presented. The assignments are based on 2D shift-correlated [H-1,H-1-COSY,H-1,C-13-gHSQC-(1)J (C,H), H-1, C-13-gHMBC-(n)J (C,H) (n = 2 and 3)] and NOE experiments. Copyright (c) 2005 John Wiley & Sons, Ltd.
Description
Keywords
Chemistry, Multidisciplinary Chemistry, Physical Spectroscopy
Pedagogical Context
Citation
MAGNETIC RESONANCE IN CHEMISTRY. - Vol. 43, n. 7 (JUL 2005), p. 595-598
Publisher
JOHN WILEY & SONS LTD