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(2S,6aR,10aR)-6,6,9-Trimethyl-1-oxo-2-phenylseleno-1,2,3,4,6a,7,8,9,10,10a-decahydro-6H-dibenzo[b,d]pyran

✍ Scribed by Clegg, W. ;Harms, K. ;Sheldrick, G. M. ;von Kiedrowski, G. ;Tietze, L.-F.


Book ID
114527428
Publisher
International Union of Crystallography
Year
1980
Weight
417 KB
Volume
36
Category
Article
ISSN
0567-7408

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The title compound, C 34 H 56 O 5 , an oleanane triterpene, is a key intermediate in the synthetic route from betulin to 18(19)oleanene triterpenoids. In the molecule, all bond lengths and angles are normal. The hydroxy groups are involved in intermolecular O-HÁ Á ÁO hydrogen bonds, which link the m