Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Yuejun Xiang"'
Autor:
Yuejun Xiang, Raymond F. Schinazi, Yung-Chi Cheng, Chung K. Chu, Socrates C. H. Cavalcanti, M. G. Newton
Publikováno v:
Nucleosides and Nucleotides. 18:2233-2252
A series of 2′,3′-dideoxy-2′-fluoro-L-threo-pentofuranosyl nucleosides has been synthesized as potential antiviral agents. The synthesized compounds were evaluated against HIV-1, HBV, HSV-1, and HSV-2. Among the synthesized analogues, only the
Publikováno v:
Nucleosides and Nucleotides. 15:1821-1834
Abstract: 2′,3′-Dideoxy-D-C-nucleosides, 2,4-diamino-5-(2,3-dideoxy-D-glycero-pentofuranosyl)pyrimidine.s (11 and 12), 4-amino-8-(2,3-dideoxy-D-glyceropentofuranosyl)pyrazolo[1,5-a]-1,3,5-triazines (17 and 18), 4-amino-7-(2,3-dideoxy-D-glyceropen
Publikováno v:
Tetrahedron Letters. 37:4877-4880
A diastereo- and enantioselective synthesis of isoxazolidinyl nucleosides (4) is described. The required isoxazolidine intermediate (16) was successfully prepared by the dioxolane-derived tautomerization of the corresponding lactol (13) which, in tur
Publikováno v:
Tetrahedron Letters. 36:3781-3784
Novel C-nucleosides (2′R,4′S)-and (2′S,4′R)-2-[4-(hydroxymethyl)-1,3-dioxolan-2-yl]-1,3-thiazole-4-carboxamide have been synthesized from stereoselectively induced condensation of optically active triols (S or R) with a 1,3-thiazole-4-carboxa
Autor:
Yuejun Xiang, Yung-Chi Cheng, Young-Lian Zhu, Raymond F. Schinazi, S. Balakrishna Pai, Socrates C. H. Cavalcanti, Chung K. Chu
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 5:877-880
1-or-9-(2,3-Dideoxy-2-fluoro-β-L-threo-pentofuranosyl)- cytosine (F-β-L-ara-ddC) and-adenine (F-β-L-ara-ddA) were synthesized and their anti-HIV and anti-HBV activities were evaluated.
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 5:743-748
1- or 9-(2-Deoxy-2,2-difluoro-β-L-ribofuranosyl)-thymine, -cytosine and -adenine were synthesized and their in vitro activity against HIV were evaluated.
Publikováno v:
Journal of Fluorine Chemistry. 63:151-155
A novel one-pot synthesis of functionalized perfluoroalkylated 1,4-alkadienes via the Reformatsky reaction of unsaturated halo esters with fluorinated β-ketophosphonium salts is described. This new methodology provides a four-carbon homologation giv
Autor:
Yanchang Shen, Yuejun Xiang
Publikováno v:
ChemInform. 22
A new convenient one-pot synthesis of fluorinated bromoallenes starting from the commercial available substances is described.
Autor:
Yanchang Shen, Yuejun Xiang
Publikováno v:
ChemInform. 23
Trifluoromethylated β,γ-unsaturated esters and nitriles can be synthesized by reaction of organozinc compounds with fluorinated β-ketophosphonium salts. This novel reaction without isolation of intermediates provides a convenient synthesis of the
Autor:
Yanchang Shen, Yuejun Xiang
Publikováno v:
ChemInform. 23
4-Trifluoromethyl-2,4-dienamides can be successfully synthesized by the reaction of trifluoromethylated arsoranes, generated from the transylidation between fluorinated β-oxoalkylphosphonium salts and methylenetriphenylarsorane, with α-bromoacetami