title: A cocrystal of 3α-hy-droxy-tirucalla-8,24-dien-21-oic acid and 3β-fluoro-tirucalla-7,24-dien-21-oic acid (0.897:0.103).
abstract: The title compound, 0.897C(30)H(48)O(3).0.103C(30)H(47)O(2)F is a co-crystal of two triterpenes isolated from the resin of Canarium schweinfurthiiand Engl. Both triterpenes consists of four trans-fused rings having chair/half-chair/half-chair and envelope conformations. The mol-ecular conformations are stabilized by intra-molecular C-H⋯O hydrogen bonds, forming rings of S(7) graph-set motif. In the crystal, mol-ecules are linked by inter-molecular O-H⋯O and C-H⋯O inter-actions, forming sheets parallel to (001). All atoms. excepting the axially-oriented hydroxyl group in the major component and the equatorially-oriented fluorine atom in the minor component, are overlapping.
authors.forename: S
authors.initials: S
authors.lastname: Yousuf
authors.forename: R S T
authors.initials: RS
authors.lastname: Kamdem
authors.forename: P
authors.initials: P
authors.lastname: Wafo
authors.forename: B T
authors.initials: BT
authors.lastname: Ngadjui
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun