Journal ArticleDOI
Synthesis and crystal structure of 7-acetamido-6,7,8-trideoxy-1,2:3,4-Di-O-isopropylidene-α-d-glycero-d-galacto-octo-pyranose
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In this article, the configuration of C-7 in compound 8 was determined by X-ray crystallagraphy and the crystals are orthorhombic, space group P 2 1,2 1 2 1 with Z4.About:
This article is published in Carbohydrate Research.The article was published on 1978-04-01. It has received 6 citations till now. The article focuses on the topics: Pyranose.read more
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Journal ArticleDOI
Preparation and crystal and molecular structure of 6-O-[(2S)-2,3-epoxypropyl]-1, 2:3,4-di-O-isopropylidene-α-d-galactopyranose. Pyranoid ring conformation in 1,2:3,4-di-O-isopropylidene galactopyranose and related systems
TL;DR: The title compound was isolated by several recrystallisations from a 1:1 mixture of diastereomers which was obtained in 75% yield from the reaction of 1,2:3,4-di-O-isopropylidene-α-d -galactopyranose with epichlorohydrin this paper.
Book ChapterDOI
Bibliography of Crystal Structures of Carbohydrates, Nucleosides, and Nucleotides For 1979 and 1980; Addenda and Errata For 1970-1978; And Index For 1935-1980
Journal ArticleDOI
Synthesis and crystal structures of 7-acetamido-7,8-di-deoxy-1,2:3,4-di-O-isopropylidene-β-L-threo-Dgalacto-octopyanose and 7-acetamido-6-O-acetyl-7,8-dideoxy-1,2:3,4-di-O-isopropylidene-α-D-erythro-D-galacto-octopyranose
TL;DR: In this paper, a mixture of 7,8-dideoxy-7-C-nitro-octoses prepared from D -galactose was synthesized for the synthesis of analogs of the antibiotic lincomycin.
Journal ArticleDOI
The structure of 6-benzylamino-6-deoxy-1,2:3,4-di-O-isopropylidene-l-glycero-α-d-galacto-heptopyranurononitrile: Conformation of the six- and five-membered rings
TL;DR: The structure of the title compound has been determined by X-ray analysis as discussed by the authors, and the conformations of the saturated six-membered and the 1,3-dioxolane rings in the cis,trans,cis system of di- O -isopropylidene derivatives of α-d -galactopyranose, β- d -fructopyrinose, and di O -tosyl- l - chiro -inositol have been analyzed in the solid state.
Journal ArticleDOI
6-[Bis(ethoxycarbonyl)methyl]-6-deoxy-1,2;3,4-di-O-isopropyl-idene-d-galacto-pyran-ose.
TL;DR: The title compound, C(19)H(30)O(9), was prepared by substitution at the C6 position in 1,2;3,4-di-O-isopropyl-idene-6-O -trifluoro-methane-sulfonyl-d-galactose using sodium eth-oxy-malonate in dimethyl-formamide.
References
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Journal ArticleDOI
General definition of ring puckering coordinates
Dieter Cremer,John A. Pople +1 more
TL;DR: In this article, a unique mean plane is defined for a general monocyclic puckered ring, which is described by amplitude and phase coordinates which are generalizations of those introduced for cyclopentane by Kilpatrick, Pitzer, and Spitzer.
Journal ArticleDOI
Conformational analysis of the sugar ring in nucleosides and nucleotides. A new description using the concept of pseudorotation.
C. Altona,M. Sundaralingam +1 more
Journal ArticleDOI
Lincomycin. XI. Synthesis and Structure of Clindamycin. A Potent Antibacterial Agent
Robert D. Birkenmeyer,Fred Kagan +1 more
Journal ArticleDOI
Syntheses related to the carbohydrate moiety in lincomycin
TL;DR: In this article, the addition of nitroethane to 1,2:3,4-di-O-isopropylidene-α-D-galacto-hexodialdo-1,5-pyranose gave a mixture of β-nitro alcohols.