N-tert-butylsulfonylcarbamates from tert-butylsulfinyl chloride and N-hydroxycarbamates. Reaction mechanism and observation of CIDNP [chemically induced dynamic nuclear polarization]
Gold-Catalyzed Rearrangement of Alkynyl Donor–Acceptor Cyclopropanes To Construct Highly Functionalized Alkylidenecyclopentenes
摘要:
A gold-catalyzed 1,7-addition-cyclization-elimination cascade sequence performed on a range of alkynyl-substituted donor-acceptor-type cyclopropanes provides facile entry to highly functionalized exo-alkylidenecyclopentenes under very mild conditions. Isolation of the relevant allyl ether intermediate helped shed light on the reaction's mechanistic course.
[EN] ARYL AND HETEROARYL COMPOUNDS, COMPOSITIONS AND METHODS OF USE<br/>[FR] COMPOSES ARYLE ET HETEROARYLE, COMPOSITIONS ET PROCEDES ASSOCIES
申请人:TRANSTECH PHARMA INC
公开号:WO2005014532A1
公开(公告)日:2005-02-17
This invention provides aryl and heteroaryl compounds of Formula (I) as described herein, and methods of their preparation. Also provided are pharmaceutical compositions made with the compounds of Formula (I) and methods for making such compositions. The compounds of Formula (I) may activate an erythropoietin receptor and thus, may be useful to induce red blood cell production. The compounds of Formula (I) and compositions including compounds of Formula (I) may be useful in a variety of applications including the management, treatment and/or control of diseases caused at least in part by deficient (or inefficient) EPO production relative to hemoglobin level.
Aminoxidation of Arenethiols to <i>N</i>-Chloro-<i>N</i>-sulfonyl Sulfinamides
作者:Zhanhui Yang、Wei Xu、Qiuyue Wu、Jiaxi Xu
DOI:10.1021/acs.joc.6b00261
日期:2016.4.1
A simple and efficient method to synthesize N-chloro-N-sulfonylsulfinamides by the direct aminoxidation of arenethiols under aqueous and mild conditions is disclosed, geminally installing the oxo and amino groups on the sulfur atom of arenethiols. The products have been primarily developed as sulfinylation reagents to convert Grignard reagents into sulfoxides, and as amination reagents to convert secondary
Diastereoselective Acylation of Racemic Heterocyclic Amines with N-Tosyl-(S)-Prolyl Chloride and its Structural Analogs
作者:S. A. Vakarov、D. A. Gruzdev、E. N. Chulakov、L. Sh. Sadretdinova、M. A. Ezhikova、M. I. Kodess、G. L. Levit、V. P. Krasnov
DOI:10.1007/s10593-014-1538-8
日期:2014.9
resolution of racemic amines (2,3-dihydro-4H-1,4-benzoxazine and 1,2,3,4-tetrahydroquinoline derivatives) via diastereoselective acylation with N-tosyl-(S)-prolyl chloride and its structural analogs was performed. The effect of resolving agent structure on the stereoselectivity of heterocyclicamineacylation was examined. The highest stereoselectivity was achieved in the case of acylation with acyl chlorides
Gold-Catalyzed Tandem Cycloisomerization-Halogenation of Chiral Homopropargyl Sulfonamides
作者:Chao Shu、Long Li、Cang-Hai Shen、Peng-Peng Ruan、Chao-Yue Liu、Long-Wu Ye
DOI:10.1002/chem.201503891
日期:2016.2.12
Two new gold‐catalyzed tandem cycloisomerization–halogenation reactions of chiralhomopropargylsulfonamides have been developed. Various enantioenriched 3,3‐diiodopyrrolidin‐2‐ols and 3‐fluoropyrrolidin‐2‐ols were obtained in moderate‐to‐good yields with excellent enantio‐ and diastereoselectivity.
SUBSTITUTED PYRAZOLO[1,5-A] PYRIDINE AS TROPOMYOSIN RECEPTOR KINASE (TRK) INHIBITORS
申请人:Dr. Reddy's Laboratories Ltd.
公开号:US20140371217A1
公开(公告)日:2014-12-18
The present application relates to a series of substituted pyrazolo[1,5-a]pyridine compounds, their use as tropomyosin receptor kinase (Trk) family protein kinase inhibitors, method of making and pharmaceutical compositions comprising such compounds.