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1,3,6-Trihy-droxy-7-meth-oxy-2,8-bis-(3-methyl-but-2-en-yl)-9H-xanthen-9-one.

ABSTRACT: The title compound (trivial name ?-mangostin), C(24)H(26)O(6), isolated from Cratoxylum glaucum, is characterized by a xanthone skeleton of three fused six-membered rings and two 3-methyl-but-2-enyl side chains. The three rings in the structure are nearly coplanar, with an r.m.s. deviation for the tricyclic ring system of 0.0014?Å. The two 3-methyl-but-2-enyl side chains are in (+)-synclinal and (-)-anti-clinal conformations. Intra-molecular O-H?O and C-H?O inter-actions occur. The crystal structure is stabilized by inter-molecular O-H?O, C-H?O and C-H?? inter-actions.

SUBMITTER: Ee GC

PROVIDER: S-EPMC3011676 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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1,3,6-Trihy-droxy-7-meth-oxy-2,8-bis-(3-methyl-but-2-en-yl)-9H-xanthen-9-one.

Ee Gwendoline Cheng Lian GC Sim Wei Chung WC Kwong Huey Chong HC Mohamed Tahir Mohamed Ibrahim MI Silong Sidik S

Acta crystallographica. Section E, Structure reports online 20101130 Pt 12

The title compound (trivial name α-mangostin), C(24)H(26)O(6), isolated from Cratoxylum glaucum, is characterized by a xanthone skeleton of three fused six-membered rings and two 3-methyl-but-2-enyl side chains. The three rings in the structure are nearly coplanar, with an r.m.s. deviation for the tricyclic ring system of 0.0014 Å. The two 3-methyl-but-2-enyl side chains are in (+)-synclinal and (-)-anti-clinal conformations. Intra-molecular O-H⋯O and C-H⋯O inter-actions occur. The crystal struc ...[more]

PMID: 21589631

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