抄録
Petroleum ether extract of the heartwood of Cryptomeria japonica D. Don contains isodextropimaric acid, sugiol, xanthoperol, and a viscous resin. After saponification of the resin fraction, β-sitosterol, ferruginol, xanthoperol and an unknown compound are found to be present, showing the occurrence of these substances in states of chemical combination with other constituents. It has now been proposed that isodextropimaric acid is optically active.
