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ABSTRACT:
SUBMITTER: Zhang W
PROVIDER: S-EPMC2969565 | biostudies-literature | 2009 May
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20090523 Pt 6
The title compound, C(18)H(28)O(4), crystallizes with two mol-ecules in the asymmetric unit. Both mol-ecules have similar conformations of nine-membered rings, which are trans-fused with cyclo-butane fragments. The puckering amplitudes (q2) of the cyclo-butane rings are 0.2451 (2) and 0.2526 (2) Å. ...[more]