Enantioselective Synthesis of α‐Secondary and α‐Tertiary Piperazin‐2‐ones and Piperazines by Catalytic Asymmetric Allylic Alkylation
作者:Katerina M. Korch、Christian Eidamshaus、Douglas C. Behenna、Sangkil Nam、David Horne、Brian M. Stoltz
DOI:10.1002/anie.201408609
日期:2015.1.2
The asymmetric palladium‐catalyzed decarboxylative allylicalkylation of differentially N‐protected piperazin‐2‐ones allows the synthesis of a variety of highly enantioenriched tertiarypiperazine‐2‐ones. Deprotection and reduction affords the corresponding tertiarypiperazines, which can be employed for the synthesis of medicinally important analogues. The introduction of these chiral tertiary piperazines
[EN] MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR<br/>[FR] MODULATEURS DU RÉGULATEUR DE LA CONDUCTANCE TRANSMEMBRANAIRE DE LA MUCOVISCIDOSE
申请人:VERTEX PHARMA
公开号:WO2022076625A1
公开(公告)日:2022-04-14
This disclosure provides modulators of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) having core structure (I), pharmaceutical compositions containing at least one such modulator, methods of treatment of CFTR mediated diseases, including cystic fibrosis, using such modulators and pharmaceutical compositions, combination pharmaceutical compositions and combination therapies, and processes and intermediates for making such modulators.
A method for producing a polyurethane prepolymer having terminal isocyanate groups is provided wherein one or more polyisocyanates are reacted with one or more polyols and wherein at least one asymmetric diisocyanate, at least one polyol having an average molecular weight (M
n
) of 60 to 3000 g/mol, and at least one carboxamide catalyst are used. The ratio of isocyanate groups to hydroxyl groups is set in the range between 1.1:1 to 4:1.
提供了一种生产具有末端异氰酸酯基团的聚氨酯预聚物的方法,其中一种或多种多异氰酸酯与一种或多种多元醇反应,至少一种不对称二异氰酸酯、至少一种平均分子量(M
n
)的至少一种多元醇和至少一种羧酰胺催化剂。异氰酸酯基团与羟基基团的比例设定在 1.1:1 至 4:1 之间。
IMIDAZODIAZEPINE COMPOUND
申请人:Astellas Pharma Inc.
公开号:EP3312181B1
公开(公告)日:2019-08-07
Guryn, Roman, Polish Journal of Chemistry, 1989, vol. 63, # 1-3, p. 265 - 271