Sequential Ruthenium Catalysis for Olefin Isomerization and Oxidation: Application to the Synthesis of Unusual Amino Acids
作者:Marc Liniger、Yiyang Liu、Brian M. Stoltz
DOI:10.1021/jacs.7b08496
日期:2017.10.4
How can you use a ruthenium isomerization catalyst twice? A ruthenium-catalyzed sequence for the formal two-carbon scission of allyl groups to carboxylic acids has been developed. The reaction includes an initial isomerization step using commercially available ruthenium catalysts followed by in situ transformation of the complex to a metal-oxo species, which is capable of catalyzing subsequent oxidation
Asymmetric Synthesis of Homoallylic Amines Bearing Adjacent Stereogenic Centers by Addition of Substituted Allylic Zinc Reagents to N-<i>tert</i>-Butanesulfinylimines
diastereoselective addition of substituted racemic allylic zinc reagents to chiral N- tert-butanesulfinylimines resulting in the formation of homoallylic amines is reported. This method is quite general and also efficient for the preparation of enantiomerically pure homoallylic amines bearing quaternary centers and also adjacent quaternary centers.
Stereoselective Addition of a Lithium Anion of 1,1-Diphenyl-2-aza-pentadiene to Sulfinimines: Application to the Synthesis of (−)-Epiquinamide
作者:Manoj B. Uphade、Arava Amaranadha Reddy、Sopan P. Khandare、Kavirayani R. Prasad
DOI:10.1021/acs.orglett.9b03507
日期:2019.11.15
of diphenylallylimine to nonracemic sulfinimines was investigated. It was found that the reaction with sulfinimines derived from aliphatic aldehydes afforded the products with excellent diastereoselectivity (>99:1), furnishing the product vicinal diamines in very good yields. Application of the formed product vicinal diamines was demonstrated in the total synthesis of the natural product (−)-epiquinamide
Fused Pyrroledicarboxamides and Their Use as Pharmaceuticals
申请人:SANOFI
公开号:US20150018342A1
公开(公告)日:2015-01-15
The present invention relates to fused pyrroledicarboxamides of the formula (I), in which R1 to R9, X, m and n are as defined in the claims. The compounds of the formula (I) are inhibitors of the acid-sensitive potassium channel TASK-1 and suitable for the treatment of TASK-1 channel-mediated diseases such as arrhythmias, in particular atrial arrhythmias like atrial fibrillation or atrial flutter, and respiratory disorders, in particular sleep-related respiratory disorders like sleep apnea, for example.
Fused pyrroledicarboxamides and their use as pharmaceuticals
申请人:SANOFI
公开号:US09284333B2
公开(公告)日:2016-03-15
The present invention relates to fused pyrroledicarboxamides of the formula (I), in which R1 to R9, X, m and n are as defined in the claims. The compounds of the formula (I) are inhibitors of the acid-sensitive potassium channel TASK-1 and suitable for the treatment of TASK-1 channel-mediated diseases such as arrhythmias, in particular atrial arrhythmias like atrial fibrillation or atrial flutter, and respiratory disorders, in particular sleep-related respiratory disorders like sleep apnea, for example.