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(2S,3R,4R,5S)-3,4-O-Iso­propyl­idene-2-methyl-1-oxa-6,9-diaza­spiro[4.5]decane-7,10-dione

✍ Scribed by Watkin, David J. ;Müller, Matthias ;Blèriot, Yves ;Simone, Michela I. ;Fleet, George W. J.

Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
512 KB
Volume
60
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title spirocarbopeptoid, C 11 H 13 N 2 O 5 , was prepared from l-fucose in a sequence that gave this and another anomer. The crystal structure determination removes ambiguities in the synthetic sequence.

📜 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.

(3S,8S)-3,8-Diisopropyl-1,6-dioxa-4,9-di
(3S,8S)-3,8-Diisopropyl-1,6-dioxa-4,9-diaza-5λ5-phosphaspiro­[4.4]nonane-2,7-dione
✍ Cao, Shu-Xia ;Liu, Jin-Ming ;Xie, Ya-Li ;Liao, Xin-Cheng ;Zhao, Yu-Fen 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 234 KB

Single-crystal X-ray study T = 291 K Mean (C-C) = 0.006 A R factor = 0.053 wR factor = 0.136 Data-to-parameter ratio = 15.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.