منابع مشابه
SYNTHESIS OF 4-(1-BENZYL-5-IMIDAZOLYL)-1,4-DIHYDROPYRIDINES
The o-nitrophenyl group at position 4 of dihydropyridine of nifedipine analogues was replaced with 2-alkylthio-1-benzyl-5-imidazolyl substituent. Starting from dihydroxyacetone 2-alkythio-1-benzyl- 5-formyl imidazole (3) was first synthesized which was subsequently used in synthesizing symmetrical (5a-f) and asymmetrical (6a,b) dihydropyridines. Primarily pharmacological studies of the title co...
متن کاملMethyl 4-O-benzyl-α-l-rhamnopyranoside
In the title compound, C14H20O5, an inter-mediate in the synthesis of oligosaccharides, the glycosidic [H-C-O-C(H3)] torsion angle ϕH is 52.3° and the exo-cyclic [H-C-O-C(H2)] torsion angle θH is -11.7°. The hexa-pyran-ose ring has a chair conformation. In the crystal, mol-ecules are linked by O-H⋯O hydrogen bonds, forming chains propagating along [010]. Enclosed within the chains are R 3 (3)(1...
متن کاملCrystal structure of 3-O-benzyl-4(R)-C-(1-benzyl-1H-1,2,3-triazol-4-yl)-1,2-O-isopropylidene-α-d-erythrofuranose
The title compound, C23H25N3O4, {systematic name: 1-benzyl-4-[(3aR,5R,6R,6aR)-6-benz-yloxy-2,2-di-methyl-tetra-hydro-furo[2,3-d][1,3]dioxol-5-yl]-1H-1,2,3-triazole}, consists of a substituted 2,2-di-methyl-tetra-hydro-furo[2,3-d][1,3]dioxole. The furan-ose ring adopts an envelope conformation close to C 3-exo, where the C atom substituted by the benz-yloxy group is the flap. The fused dioxolane...
متن کاملsynthesis of 4-(1-benzyl-5-imidazolyl)-1,4-dihydropyridines
the o-nitrophenyl group at position 4 of dihydropyridine of nifedipine analogues was replaced with 2-alkylthio-1-benzyl-5-imidazolyl substituent. starting from dihydroxyacetone 2-alkythio-1-benzyl- 5-formyl imidazole (3) was first synthesized which was subsequently used in synthesizing symmetrical (5a-f) and asymmetrical (6a,b) dihydropyridines. primarily pharmacological studies of the title co...
متن کاملDesymmetrization of 2,4,5,6-tetra-O-benzyl-D-myo-inositol for the synthesis of mycothiol.
An efficient chemical synthesis of mycothiol involving the regioselective ketopinyl desymmetrization of 2,4,5,6-tetrabenzylated D-myo-inositol as the key step is described. Together with a highly α-stereoselective D-glucosaminylation, the whole procedure was accomplished in eight steps with an overall yield of 40%.
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1959
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.13-0593