ent-7 alpha,18-Hydroxykaur-16-ene ethanol solvate


LINDEN A. , Sahin F. , Ezer N. , Calis I.

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, cilt.62, 2006 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 62
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1107/s0108270106008638
  • Dergi Adı: ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS

Özet

The ent-kaurene diterpene in the title compound, 7-epican-dicandiol ethanol solvate, C20H32O2 center dot C2H6O, was isolated from the aerial parts of Sideritis ozturkii Aytac & Aksoy. The mol-ecule has the usual conformation and stereochemistry found in related ent-kaurene derivatives. The methyl-substituted ring junction has a trans arrangement and the other junction is cis. The six-membered rings have chair or slightly distorted chair conformations and the five-membered ring has an envelope conformation. Inter-molecular hydrogen bonds link the 7-epicandicandiol and ethanol mol-ecules into two-dimensional networks, part of which comprise co-operative O-H center dot center dot center dot O-H center dot center dot center dot O-H center dot center dot center dot chains.