title: 13-Ethoxy-carbonyl-16-(1-methyl-ethyl)-17,19-dinoratis-15-ene-4,14-dicarboxylic acid monohydrate: a new derivative of maleopimaric acid.
abstract: The title compound, C(26)H(38)O(6)·H(2)O, is a mono-ester of a derivative of maleopimaric acid, an abietic-type acid. The two fused and unbridged cyclo-hexane rings adopt approximate chair conformations while the three other three six-membered rings have boat conformations.
authors.affiliation: Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, People's Republic of China.
authors.forename: Meng
authors.initials: M
authors.lastname: Zhang
authors.forename: Xiao-Xin
authors.initials: XX
authors.lastname: Guo
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Zhou
authors.forename: Hong-Jun
authors.initials: HJ
authors.lastname: Liu