Zobrazeno 1 - 10
of 21
pro vyhledávání: '"María E. Gelpi"'
Publikováno v:
Journal of Heterocyclic Chemistry. 42:1-3
The feasibility of using the Mitsunobu reaction for coupling of purines with steroids to obtain nucleosteroids was investigated in the particular case of 6-chloropurine and cholesterol. Three principal products were obtained: 3βbT-(6-chloropurin-9-y
Publikováno v:
Journal of Carbohydrate Chemistry. 14:1209-1216
The reaction of acetylaminoacetonitrile with penta-O-benzoyl-α-D-glucopyranose in dichloromethane-nitromethane, in a 1:1 stoichiometric proportion, catalysed by stannic chloride, gave a nitrilium salt that, after hydrolysis, afforded the correspondi
Publikováno v:
ChemInform. 23
Several carbocyclic nucleoside analogs possessing a 6-substituted purine linked to a mesylated muco-inositol were synthesized. The coupling of triethylamine-activated 6-chloropurine with 2,3-anhydro-l,5,6-tri-O-(methanesulfonyl)-epi-inositol gave a 6
Publikováno v:
ChemInform. 27
The reaction of acetylaminoacetonitrile with penta-O-benzoyl-α-D-glucopyranose in dichloromethane-nitromethane, in a 1:1 stoichiometric proportion, catalysed by stannic chloride, gave a nitrilium salt that, after hydrolysis, afforded the correspondi
Publikováno v:
Journal of Carbohydrate Chemistry. 9:59-74
Starting from a mesylated inosamine several ethanol-, β - chloroethyl-, β-mesyloxy ethyl-, and β-iodoethylamino compounds were synthesized. Different chlorinated derivatives were obtained through variations in the chlorinating reagent, solvent, an
Publikováno v:
Nucleosides and Nucleotides. 9:21-34
Several nucleocyclitols were synthesized in good yield from an inositol epoxide and some activated purine derivatives (adenine, 6-methylmercaptopurine). The reaction was also carried out with other more basic, nitrogen heterocycles such as imidazole
Publikováno v:
Steroids. 67(3-4)
Steroidal nucleoside analogs were synthesized starting from testosterone. By reduction of the oxime of 17 beta-hydroxy-androst-4-en-3-one (testosterone), a mixture of the two amino epimers of C-3 were obtained. The 3 alpha-amino-androst-4-en-17 beta-
Publikováno v:
Steroids. 61(12)
The reaction of 16 alpha,17 alpha-epoxy-3 beta-hydroxy-5-pregnen-20-one with 6-methyl thiopurine activated with sodium hydride leads to the coupling of the purine base with the carbonyl group at C-20 to give a steroidal nucleoside analog, which is te
Publikováno v:
ChemInform. 21
Starting from a mesylated inosamine several ethanol-, β - chloroethyl-, β-mesyloxy ethyl-, and β-iodoethylamino compounds were synthesized. Different chlorinated derivatives were obtained through variations in the chlorinating reagent, solvent, an
Publikováno v:
Carbohydrate Research. 148:153-161