A new abietane and two dimeric abietane diterpenes from the black heartwood of Cryptomeria japonica.
Three new diterpenes, sugikurojins A-C (1-3) were isolated from the black heartwood of Cryptomeria japonica. The structure of sugikurojin A was deduced to be 19-hydroxy-6,7-dehydroferruginol on the basis of extensive NMR experiments. Sugikurojin B was a dimer of 6,7-dihydroxyferruginol and 6,7-dehydroferruginol with a 6-O-11' linkage. Sugikurojin C was a dimeric ferruginol with 6-O-7' and 7-O-6' linkages. Also obtained in this investigation were the known compounds formosaninol (4), 15 sesquiterpenes (5-19), 16 diterpenes (20-35), three phenylpropanoids (36-38), and a phenolic compound (39).
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan. arihara@ph.bunri-u.ac.jp
Shigenobu
S
Arihara
Akemi
A
Umeyama
Shinya
S
Bando
Shinji
S
Imoto
Mikako
M
Ono
Mayo
M
Tani
Kazuko
K
Yoshikawa
D045784:Abietanes / Q000737:chemistry / Q000302:isolation & purification*; D032485:Cryptomeria / Q000737:chemistry*; D007564:Japan; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification; D014934:Wood
D045784:Abietanes; D012717:Sesquiterpenes; C490061:sugikurojin A; C490063:sugikurojin B; C490064:sugikurojin C