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(+)-(1S,2S,4S,4aR,5R,6S,9S,10S)-4-Benzyl­oxy-9,10-(carbonyl­dioxy)-1-methoxy­methoxy-4a,6,8,8-tetra­methyl-7-methyl­enedodeca­hydro-6,9-ethano­benzo­cyclo­octene-5-ol

✍ Scribed by Ohba, Shigeru ;Chinen, Ayako ;Matsumoto, Yuki ;Chida, Noritaka

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
264 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title tetracyclic compound, C 29 H 40 O 7 , has been obtained unexpectedly in a synthetic study of the natural diterpenoid, paclitaxel. There is an intramolecular OÐHÁ Á ÁO hydrogen bond between the hydroxy and benzyloxy groups.

📜 SIMILAR VOLUMES

(2R,4S,7R,9S)-5,6-Diisopropyl-1,10-dimet
(2R,4S,7R,9S)-5,6-Diisopropyl-1,10-dimethoxy-3,8-dimethyldeca-3,4,6,7-tetraene-2,9-diol
✍ Poonoth, Manojkumar ;Schürmann, Markus ;Preut, Hans ;Krause, Norbert 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 363 KB

The molecule of the title compound, C~20~H~34~O~4~, is centrosymmetric. In the crystal structure, a network of O—H...O hydrogen bonds result in each molecule being linked to four neighbouring molecules and a two-dimensional net is formed.

(5S*,6R*,7R*,9R*)-1-Benzyl-7,9-di­methyl
(5S*,6R*,7R*,9R*)-1-Benzyl-7,9-di­methyl-8-oxo-1-aza­spiro­[4.4]­nonane-6-carbo­nitrile
✍ Gravestock, David ;McKenzie, Jean M. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 181 KB

Single-crystal X-ray study T = 295 K Mean '(C±C) = 0.005 A Ê R factor = 0.085 wR factor = 0.287 Data-to-parameter ratio = 15.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

(1R,2R,3S,5R,6R,7S,9aR,10aR)-4a,8a-Di­az
(1R,2R,3S,5R,6R,7S,9aR,10aR)-4a,8a-Di­aza­per­hydro­anthracene-1,2,3,5,6,7-hexaol
✍ Furneaux, Richard H. ;Gainsford, Graeme J. ;Mason, Jennifer M. ;Tyler, Peter C. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 181 KB

The title compound, C 12 H 22 N 2 O 6 , is a linearly fused di(trihydroxypiperido)piperazine. The three six-membered rings adopt chair conformations with all the hydroxyl groups equatorial, and the ring fusion is the unusual trans±cisoid±cis.