[EN] METHODS FOR PREPARING OXAZABOROLIDINES [FR] PROCÉDÉS DE PRÉPARATION D'OXAZABOROLIDINES
摘要:
A method for the preparation of oxazaborolidines having a formylation step of an amino acid using formic-acetic anhydride (FAM) with formic acid solvent to produce a formyl amino acid; a reduction step of the formyl amino acid to the corresponding amino alcohol by reacting the formyl amino acid with lithium aluminium hydride; and a condensation step to condense the amino alcohol using a boronic acid to provide the desired oxazaborolidine.
The invention provides a compound of formula I:
1
wherein G, R
2
, and R
3
have any of the values defined in the specification, or a pharmaceutically acceptable salt thereof, as well as processes and intermediates useful for preparing such compounds or salts, and methods of treating a herpesvirus infection using such compounds or salts.
7-Oxo-4,7-dihydrothieno[3,2-b]pyridine-6-carboxamides: Synthesis and biological activity of a new class of highly potent inhibitors of human cytomegalovirus DNA polymerase
作者:Scott D. Larsen、Zhijun Zhang、Brian A. DiPaolo、Peter R. Manninen、Douglas C. Rohrer、Michael J. Hageman、Todd A. Hopkins、Mary L. Knechtel、Nancee L. Oien、Bob D. Rush、Francis J. Schwende、Kevin J. Stefanski、Janet L. Wieber、Karen F. Wilkinson、Kathyrn M. Zamora、Michael W. Wathen、Roger J. Brideau
DOI:10.1016/j.bmcl.2007.05.010
日期:2007.7
We report a new class of non-nucleoside antivirals, the 7-oxo-4,7-dihydrothieno[3,2-b]pyridine-6-carboxamides, some of which possess remarkable potency versus a broad spectrum of herpesvirus DNApolymerases and excellent selectivity compared to human DNApolymerases. A critical factor in the level of activity is hypothesized to be conformational restriction of the key 2-aryl-2-hydroxyethylamine sidechain
of a 5-HT4 receptor antagonist pharmacophore, a series of pyrrolo[1,2-a]thieno[3,2-e] and pyrrolo[1,2-a]thieno[2,3-e] pyrazine derivatives were designed, prepared, and evaluated to determine the properties necessary for high-affinity binding to 5-HT4 receptors. The compounds were synthesized by substituting the chlorine atom of the pyrazine ring with various N-alkyl-4-piperidinylmethanolates. They
根据5-HT 4受体拮抗剂药效团的定义,一系列吡咯并[1,2- a ]噻吩并[3,2- e ]和吡咯并[1,2- a ]噻吩并[2,3- e ]设计,制备和评估吡嗪衍生物,以确定与5-HT 4受体高亲和力结合所需的性质。通过用各种N-烷基-4-哌啶基甲醇盐取代吡嗪环的氯原子来合成化合物。在结合测定中以[ 3 H] GR113808(1)作为5-HT 4受体放射性配体对它们进行了评估。亲和力值(K i(或抑制百分比)受到芳环上的取代基和侧哌啶链上的取代基的影响。三环上的甲基会显着增加亲和力,而N-丙基或N-丁基会产生具有纳摩尔亲和力的化合物。在最有效的配体中,选择34d用于进一步的药理研究并在体内进行评估。该化合物在稳定表达5-HT 4(a)受体的COS-7细胞中充当拮抗剂/弱部分激动剂,并作为一种外周镇痛药而引起了人们的极大兴趣。
[EN] NOVEL COMPOUNDS FOR MODULATION OF ORPHAN NUCLEAR RECEPTOR RAR-RELATED ORPHAN RECEPTOR-GAMMA (ROR? GAMMA, NR1F3) ACTIVITY AND FOR THE TREATMENT OF CHRONIC INFLAMMATORY AND AUTOIMMUNE DISEASE<br/>[FR] NOUVEAUX COMPOSÉS POUR MODULATION DE L'ACTIVITÉ RÉCEPTEUR GAMMA ORPHELIN ASSOCIÉ AU RÉCEPTEUR NUCLÉAIRE ORPHELIN RAR (RORG GAMMA, NR1F3) ET POUR LE TRAITEMENT D'UNE MALADIE INFLAMMATOIRE ET AUTO-IMMUNE CHRONIQUE
申请人:PHENEX PHARMACEUTICALS AG
公开号:WO2011107248A1
公开(公告)日:2011-09-09
The invention provides modulators for the orphan nuclear receptor RORγ and methods for treating RORγ mediated diseases by administrating these novel RORγ modulators to a human or a mammal in need thereof. Specifically, the present invention provides compounds of Formula (1) and the enantiomers, diastereomers, tautomers, solvates and pharmaceutically acceptable salts thereof.
Chemistry of Amino Acids. III. Reduction of Phenylalanine Ethyl Ester and Its Derivatives with Sodium Borohydride.
作者:Hideo Seki、Kenji Koga、Shunichi Yamada
DOI:10.1248/cpb.15.1948
日期:——
Eleven kinds of ethyl 2-substituted-3-phenylpropionates (Ia∼k) were reduced with sodium borohydride under a similar reaction condition and the effects of the α-substituents on the reduction were examined. Some esters (Ia∼c, e, f, j, k) were hydrolyzed with alkali. The obtained data of hydrolysis rate constants were roughly parallel to those of ester reductions. These results may be explained by considering both inductive and steric effects of the α-substituents.
十一种乙基2取代-3-苯丙酸酯(Ia∼k)在相似的反应条件下被氢化钠还原,并考察了α-取代基对还原反应的影响。一些酯(Ia∼c, e, f, j, k)经过碱水解。获得的水解速率常数数据大致与酯的还原速率相平行。这些结果可以通过考虑α-取代基的诱导效应和立体效应来解释。