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16-O-Methyl-cafestol.


ABSTRACT: THE TITLE COMPOUND [SYSTEMATIC NAME: (3bS,5aS,7R,8R,10aR,10bS)-7-meth-oxy-10b-methyl-3b,4,5,6,7,8,9,10,10a,10b,11,12-dodeca-hydro-5a,8-methano-5aH-cyclo-hepta-l[5,6]naph-tho[2,1-b]furan-7-methanol], C(21)H(30)O(3), was isolated from the beans of Coffea robusta. The mol-ecule contains five fused rings including a furan ring. The two six-membered rings are in chair conformations, but the third six-membered ring and the five-membered aliphatic ring adopt envelope conformations. Inter-molecular O-H?O hydrogen bonding is present in the crystal structure.

SUBMITTER: Liao XL 

PROVIDER: S-EPMC2983991 | BioStudies | 2010-01-01T00:00:00Z

REPOSITORIES: biostudies

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