Thiosugars. V. Synthesis of 1-Thio-β-D-ribopyranose and 1-Thio-β-D-mannopyranose Derivatives
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چکیده
منابع مشابه
2-Phenylethyl 1-thio-β-d-galactopyranoside hemihydrate
The title compound, C(14)H(20)O(5)S·0.5H(2)O, crystallizes with two organic mol-ecules and a solvent water mol-ecule in the asymmetric unit. In both mol-ecules, the hexa-pyranosyl rings adopt a slightly distorted chair conformation ((5)C(2)) with four substituents in equatorial positions and one substituent in an axial position. The main difference between the organic mol-ecules is the dihedral...
متن کاملEthyl 3,6-di-O-benzyl-2-deoxy-N-phthalimido-1-thio-β-d-glucopyranoside
In the title compound, C(30)H(31)NO(6)S, the plane of the N-phthalimido group is nearly orthogonal to the least-squares plane of the sugar ring (defined by atoms C2, C3, C5 and O5 using standard glucose nomenclature), making a dihedral angle of 72.8 (1)°. The thio-ethyl group has the exo-anomeric conformation. The hy-droxy group forms an inter-molecular hydrogen bond to the O atom in the sugar ...
متن کاملEthyl 4,6-O-benzylidene-2-deoxy-N-phthalimido-1-thio-β-d-glucopyranoside
In the title compound, C(23)H(23)NO(6)S, the plane of the N-phthalimido group makes a dihedral angle of 67.4 (1)° with the least square plane of the sugar ring defined by the C2, C3, C5 and O5 atoms using standard glucose nomenclature. The thio-ethyl group has the exo-anomeric conformation. In the crystal, inter-molecular hydrogen bonds involving the hy-droxy groups and the carbonyl O atoms of ...
متن کامل6-Methyl-2-pyridyl N-acetyl-1-thio-β-d-glucosaminide methanol monosolvate
In the title compound, C(14)H(20)N(2)O(5)S·CH(4)O, the pyran-ose and pyridine rings are linked through an S atom. The pyran-ose ring has a normal chair conformation. An intra-molecular O-H⋯N hydrogen bond occurs. Inter-molecular O-H⋯O, N-H⋯O, O-H⋯N and weak C-H⋯O hydrogen bonding is present in the crystal structure.
متن کاملPhenyl 2,3-O-isopropylidene-1-thio-α-d-rhamnopyranoside
In the title compound, C(15)H(20)O(4)S, a dioxolane ring is fused to the pyran ring of the sugar which carries a thio-phenyl substituent on the anomeric C atom. The dioxolane ring adopts an envelope conformation and the pyran ring system a distorted (4)C(1) chair. The structure is stabilized by O-H⋯O hydrogen bonds, forming centrosymmetric dimers that generate an R(2) (2)(10) ring motif. Additi...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1964
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.12.528