Four mono-tetrahydrofuran ring acetogenins, montanacins B-E, from Annona montana.
Four novel mono-tetrahydrofuran (THF) acetogenins, montanacins B-E (1-4), were isolated from the ethanolic extract of the leaves of Annona montana. The structures of 1-4 were established by spectroscopic methods and their absolute stereochemistries were determined by the advanced Mosher ester method. Montancins D (3) and E (4) bear a non-adjacent tetrahydropyran (THP) ring along with a THF ring and are the most unusual type of acetogenins discovered so far.
Wang
L Q
LQ
Shanghai Institute of Materia Medica, Chinese Academy of Sciences.
Nakamura
N
N
Meselhy
M R
MR
Hattori
M
M
Zhao
W M
WM
Cheng
K F
KF
Yang
R Z
RZ
Qin
G W
GW
D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry / Q000379:methods; D010944:Plants / Q000737:chemistry*
D005663:Furans; D007783:Lactones; C112079:isomurisolenin