Synthesis of benzanilide derivatives as dual acting agents with α1-adrenoceptor antagonistic action and steroid 5-α reductase inhibitory activity
摘要:
Synthesis of benzanilide derivatives which have dual alpha(1)-adrenoceptor antagonistic action and steroid 5 alpha-reductase inhibitory activity and their structure-activity relationships is described, (C) 1998 Elsevier Science Ltd. All rights reserved.
Synthesis of benzanilide derivatives as dual acting agents with α1-adrenoceptor antagonistic action and steroid 5-α reductase inhibitory activity
摘要:
Synthesis of benzanilide derivatives which have dual alpha(1)-adrenoceptor antagonistic action and steroid 5 alpha-reductase inhibitory activity and their structure-activity relationships is described, (C) 1998 Elsevier Science Ltd. All rights reserved.
Lewis Base-Promoted Ring-Opening 1,3-Dioxygenation of Unactivated Cyclopropanes Using a Hypervalent Iodine Reagent
作者:Matthew H. Gieuw、Zhihai Ke、Ying-Yeung Yeung
DOI:10.1002/anie.201713422
日期:2018.3.26
A facile and effective system has been developed for the regio‐ and chemoselective ring‐opening/electrophilic functionalization of cyclopropanes through C−C bond activation by [bis(trifluoroacetoxy)iodo]benzene with the aid of the Lewis basic promoter p‐toluenesulfonamide. The p‐toluenesulfonamide‐promoted system works well for a wide range of cyclopropanes, resulting in the formation of 1,3‐diol products
Reduction of aromatic and aliphatic keto esters using sodium borohydride/MeOH at room temperature: a thorough investigation
作者:Juryoung Kim、Kathlia A. De Castro、Minkyung Lim、Hakjune Rhee
DOI:10.1016/j.tet.2010.04.062
日期:2010.6
Reduction of keto esters is a valuable alternative to produce diols. Sodiumborohydride/MeOH system at room temperature and short reaction time efficiently reduced α, β, γ, and δ-keto esters having α-keto esters as the most reactive. The ester functionality was reduced effectively due to the presence of oxo group that somehow facilitates the formation of ring intermediate. As expected, the chemoselective
Parallel Kinetic Resolution of Unsymmetrical Acyclic Aliphatic <i>syn</i>-1,3-Diols
作者:Hui Yang、Wen-Hua Zheng
DOI:10.1021/acs.orglett.9b01801
日期:2019.7.5
catalytic parallelkineticresolution of unsymmetrical acyclic aliphatic syn-1,3-diol derived acetals mediated by chiral phosphoric acid. This method provides stereoselective access to a variety of syn-1,3-diols as valuable building blocks with high enantioselectivity. Moreover, this mild system allows for site-selective protection of optically pure syn-1,3-diols in excellent regioselectivity.
Tandem Alkylation−Michael Addition to Vinylogous Carbonates for the Stereoselective Construction of 2,3,3,6-Tetrasubstituted Tetrahydropyrans
作者:Santosh J. Gharpure、S. Raja Bhushan Reddy
DOI:10.1021/ol900721q
日期:2009.6.18
A stereoselective method for the synthesis of substituted tetrahydropyran derivatives employing a tandem SN2−Michael addition sequence to vinylogous carbonates is developed. The method is extended to the synthesis of bicyclic ether motifs present in polyether ladder toxins.
开发了一种立体选择性的合成取代四氢吡喃衍生物的方法,该方法利用串联的S N 2-Michael加成序列到乙烯基碳酸酯。该方法扩展到聚醚梯形毒素中存在的双环醚基序的合成。
Novel 2'-C-methyl nucleoside derivatives
申请人:Reddy Raja K.
公开号:US20050182252A1
公开(公告)日:2005-08-18
Compounds of Formula I, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral infection are described: