Combinatorial libraries of HIV and FIV protease inhibitors are characterized by α-keto amide or hydroxyethylamine core structures flanked by on one side by substituted pyrrolidines, piperidines, or azasugars and on the other side by phenylalanine, tyrosine, or substituted tyrosines. The libraries are synthesized via a one step coupling reaction. Highly efficacious drug candidates are identified by screening the libraries for binding and inhibitory activity against both HIV and FIV protease. Drug candidates displaying clinically useful activity against both HIV and FIV protease are identified as being potentially resistive against a loss of inhibitory activity due to development of resistant strains of HIV.
The structure of the immunomodulator FR 900483 (C5H9NO3) has been shown to be on the basis of chemical and spectroscopic evidence and confirmed by a synthesis from D-glucose.
免疫调节剂FR 900483(C 5 H 9 NO 3)的结构已证明是基于化学和光谱学证据,并由D-葡萄糖合成证实。
Structure and Synthesis of Nectrisine, a New Immunomodulator Isolated from a Fungus.
The structure of a novel immunomodulator, nectrisine (1), has been elucidated on the basis of chemical and spectroscopic evidence. Its absolute stereochemistry was predicted on the basis of the dibenzoate chirality rule and finally confirmed by a synthesis from D-glucose.
Stable <scp>d</scp>-xylose ditriflate in divergent syntheses of dihydroxy prolines, pyrrolidines, tetrahydrofuran-2-carboxylic acids, and cyclic β-amino acids
作者:Rosalino Balo、Alberto G. Fernández、Adam Chopdat、Soufian El Ayadi、Atsushi Kato、Ramón J. Estévez、George W. J. Fleet、Juan C. Estévez
DOI:10.1039/d2ob01255c
日期:——
cyanoacetates, respectively, gave a series of bicyclic divergent intermediates for the synthesis of a wide range of highly functionalized targets, including hydroxylated prolines, pyrrolidines, furanoic acids, and cyclopentanes.
D -xylo-ditriflate 分别被胺、水和氰基乙酸烷基酯进行双亲核置换,得到一系列双环分歧中间体,用于合成各种高度功能化的目标,包括羟基化脯氨酸、吡咯烷、呋喃酸和环戊烷。
Potent competitive inhibition of α-galactosidase and α-glucosidase activity by 1,4-dideoxy-1,4-iminopentitols: syntheses of 1,4-dideoxy-1,4-imino-d-lyxitol and of both enantiomers of 1,4-dideoxy-1,4-iminoarabinitol