引用本文:
Hong Ming CHEN, Jian ZHANG, Jian Min MAO, Meng Shen CAI. STUDIES ON NUCLEOSIDES(Ⅲ).STEREOSELECTIVE SYNTHESES OF TRIAZOLINE-THIONE NUCLEOSIDES[J]. Chinese Chemical Letters,
1994, 5(6): 455-456.
Citation: Hong Ming CHEN, Jian ZHANG, Jian Min MAO, Meng Shen CAI. STUDIES ON NUCLEOSIDES(Ⅲ).STEREOSELECTIVE SYNTHESES OF TRIAZOLINE-THIONE NUCLEOSIDES[J]. Chinese Chemical Letters, 1994, 5(6): 455-456.
Citation: Hong Ming CHEN, Jian ZHANG, Jian Min MAO, Meng Shen CAI. STUDIES ON NUCLEOSIDES(Ⅲ).STEREOSELECTIVE SYNTHESES OF TRIAZOLINE-THIONE NUCLEOSIDES[J]. Chinese Chemical Letters, 1994, 5(6): 455-456.
STUDIES ON NUCLEOSIDES(Ⅲ).STEREOSELECTIVE SYNTHESES OF TRIAZOLINE-THIONE NUCLEOSIDES
摘要:
Nine new nucleosides were prepared by the treatment of 3-[5-(3-pyridyl) tetrazol-2-yl-methylene]-4-aryl-1,2,4-triazole-5(4H)-thione (Ⅰ)with 1-O-trifluoroacetyl-2,3,5-O-tribenzoyl-β-D-ribofuranose (Ⅱ) in anhydrous CH2Cl2 in the presence of BF3·Et2O as catalyst.In this reaction,trifluoroacetoxy group used as leaving group is very effective.The structures and compositions were characterized by elemental analysis and spectroscopic methods.
English
STUDIES ON NUCLEOSIDES(Ⅲ).STEREOSELECTIVE SYNTHESES OF TRIAZOLINE-THIONE NUCLEOSIDES
Abstract:
Nine new nucleosides were prepared by the treatment of 3-[5-(3-pyridyl) tetrazol-2-yl-methylene]-4-aryl-1,2,4-triazole-5(4H)-thione (Ⅰ)with 1-O-trifluoroacetyl-2,3,5-O-tribenzoyl-β-D-ribofuranose (Ⅱ) in anhydrous CH2Cl2 in the presence of BF3·Et2O as catalyst.In this reaction,trifluoroacetoxy group used as leaving group is very effective.The structures and compositions were characterized by elemental analysis and spectroscopic methods.
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