Stereoselective Syntheses of cis- and trans-Hexahydrocyclopenta[c]pyran-3(1H)-ones
摘要:
A new access to cis- and trans-hexahydrocyclopenta[c]pyran-3(1H)-ones (1 and 2) has been accomplished stereoselectively through 4-step and 5-step routes, respectively, starting from 2-(hydroxymethyl)cyclopentanone (3).
Fluoroolefin peptide isosteres - tools for controlling peptide conformations
作者:Livia G. Boros、Bart De Corte、Rayomand H. Gimi、John T. Welch、Yang Wu、Robert E. Handschumacher
DOI:10.1016/0040-4039(94)88067-0
日期:1994.8
Fluoroolefin dipeptide isosteres were synthesized applying the Peterson reaction as a novel method for fluoroolefination. The dipeptide isosteres were elaborated to provide the conformationally constrained analogs (1-(R), 1-(S) and 2-(R), 2-(S)) of the Suc-Ala-Gly-Pro-Phe-pNA tetrapeptide, a synthetic substate of cyclophilin.
[EN] BENZIMIDAZOLONE DERIVED INHIBITORS OF BCL6<br/>[FR] INHIBITEURS DE BCL6 DÉRIVÉS DE BENZIMIDAZOLONE
申请人:CANCER RESEARCH TECH LTD
公开号:WO2018215801A1
公开(公告)日:2018-11-29
The present invention relates to compounds of Formula I that function as inhibitors of BCL6 (B-cell lymphoma 6) activity: wherein X1, X2, R1, R2 and R3 are each as defined herein. The present invention also relates to processes for the preparation of these compounds, to pharmaceutical compositions comprising them, and to their use in the treatment of proliferative disorders, such as cancer, as well as other diseases or conditions in which BCL6 activity is implicated.
Synthesis of (E)- and (Z)-fluoro-olefin analogues of potent dipeptidyl peptidase IV inhibitors
作者:Pieter Van der Veken、István Kertèsz、Kristel Senten、Achiel Haemers、Koen Augustyns
DOI:10.1016/s0040-4039(03)01542-9
日期:2003.8
(E)- and (Z)-fluoro-olefin analogues of potent dipeptidyl peptidase IV inhibitors were synthesized. A WadsworthHorner-Eminons reaction, followed by amide formation and reduction of the amide were used for the construction of the alpha-fluoro-alpha,beta-unsaturated amine functionality. (C) 2003 Elsevier Ltd. All rights reserved.
Application of enzymic Baeyer–Villiger oxidations of 2-substituted cycloalkanones to the total synthesis of (R)-(+)-lipoic acid
作者:Brian Adger、M. Teresa Bes、Gideon Grogan、Ray McCague、Sandrine Pedragosa-Moreau、Stanley M. Roberts、Raffaella Villa、Peter W. H. Wan、Andew J. Willetts
DOI:10.1039/c39950001563
日期:——
Oxidation of ketones 1aâh using a monooxygenase from Pseudomonas putida NCIMB 10007 gave the lactones 2aâh in optically active form: lactone 2h was converted into (R)-(+)-lipoic acid 9.
The stereoselective construction of fluoroalkenoates via the Peterson olefination reaction using tert-butyl α-fluoro-α-(trialkylsilyl)acetates
作者:Jian Lin、John T. Welch
DOI:10.1016/s0040-4039(98)02202-3
日期:1998.12
A new version of the Peterson fluoroolefination reaction employing tert-butyl α-fluoro-α-(trialkylsilyl)acetates was developed to construct various fluoro-alkenoates.