Yh. Kuo et Ch. Chen, A novel 7(6 -> 2)abeoabietane-type diterpene, obtusanal, from the Heartwood of Clamaecyparis obtusa var. formosana, TETRAHEDR L, 42(16), 2001, pp. 2985-2986
A novel 7(6 -->2)abeoabietane-type diterpene, obtusanal (1), together with
a known 12-hydroxy-6,7-secoabieta-8,11,13-triene-6,7-dial (2) isolated from
the heartwood of Chamnecyparis obtusa var. formosana, were elucidated on t
he basis of 2D-NMR data. The biosynthesis of 1 was proposed deriving from 1
2-hydroxy-3-oxo-6,7-secoabieta-8,11,13-triene-6,7-dial (6) via aldol conden
sation. (C) 2001 Elsevier Science Ltd. All rights reserved.