New lignans from the heartwood of Cunninghamia lanceolata.
Two new lignans, including the aryltetralin-type lignan, lanceoline (1), and the diaryl butyrolactone-type lignan, 5-methoxytrachelogenin (2), together with 5-methoxywikstromol (3), were isolated from the low-polar layer of a heartwood extract of Cunninghamia lanceolata as their acetylated derivatives 1a, 2a and 3a, respectively, and were identified by spectroscopic analyses. The (13)C-NMR data for 3a are reported for the first time in this paper.
Lee
Tzong-Huei
TH
Graduate Institute of Pharmacognosy Science, Taipei Medical University, Taipei, Taiwan, Republic of China.
Yeh
Ming-Hsi
MH
Chang
Chi-I
CI
Lee
Ching-Kuo
CK
Shao
Yi-Yuan
YY
Kuo
Yueh-Hsiung
YH
D000107:Acetylation; D002247:Carbon Isotopes; D032486:Cunninghamia / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts; D010946:Plants, Medicinal / Q000737:chemistry; D013057:Spectrum Analysis
D002247:Carbon Isotopes; D017705:Lignans; D010936:Plant Extracts