(3aS*,10R*,10aS*,10bS*,13R*,13aR*)-8-Formyl-6-hydroxy-13-methoxy-1,1,7-trimethyl-5-oxo-1,2,3,3a,5,9,10,10a,13,13a-decahydrocyclohepta[c]furo[3,4-e]chromen-10-yl acetate
✍ Scribed by Shi, Hao
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 580 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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Single-crystal X-ray study T = 295 K Mean '(C±C) = 0.004 A Ê R factor = 0.052 wR factor = 0.113 Data-to-parameter ratio = 7.2 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
2,7 ]tridecan-13-one reacts with 2-aminobenzyl alcohol to form the title compound, C 26 H 29 NO, which crystallizes with two independent molecules in the asymmetric unit. The N atom shows a nearly planar coordination owing to the strain imposed on the fused-ring compound.
The absolute configuration of the title tetracyclic bis-oxazine, C 14 H 17 N 3 O 5 S, has been determined. It is an unexpected product from the attempt to synthesize a new class of bisoxazolines. The seven-membered lactam ring exhibits four axial (O and N) and one equatorial (S) substituents. The or
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