Donor cyclopropanes in synthesis: utilising silylmethylcyclopropanes to prepare 2,5-disubstituted tetrahydrofurans
作者:Jonathan Dunn、Majid Motevalli、Adrian P. Dobbs
DOI:10.1016/j.tetlet.2011.10.091
日期:2011.12
The use of donor-only silylmethylcyclopropanes in the Lewis acid promoted reaction with aldehydes to generate 2,5-disubstitutedtetrahydrofurans is described. The diastereoselectivity obtained in the product is very much dependent upon the temperature of the reaction.
An efficient synthesis of hydropyrido[1,2-a]indole-6(7H)-ones via an In(iii)-catalyzed tandem cyclopropane ring-opening/Friedel–Crafts alkylation sequence
作者:Dadasaheb V. Patil、Marchello A. Cavitt、Paul Grzybowski、Stefan France
DOI:10.1039/c1cc14131g
日期:——
An efficient Lewis acid-catalyzed cyclopropane ring-opening/FriedelâCrafts alkylation sequence of methyl 1-(1H-indole-carbonyl)-1-cyclopropanecarboxylates is reported. The protocol affords functionalized hydropyrido[1,2-a]indole-6(7H)-ones in up to 99% yield.
[EN] COMPOUNDS THAT INHIBIT MCL-1 PROTEIN<br/>[FR] COMPOSÉS INHIBANT LA PROTÉINE MCL-1
申请人:AMGEN INC
公开号:WO2017147410A1
公开(公告)日:2017-08-31
Provided herein are myeloid cell leukemia 1 protein (Mcl-1) inhibitors, methods of their preparation, related pharmaceutical compositions, and methods of using the same. For example, provided herein are compounds of Formula I, and pharmaceutically acceptable salts thereof and pharmaceutical compositions containing the compounds. The compounds and compositions provided herein may be used, for example, in the treatment of diseases or conditions, such as cancer.
Synthesis and reactions of donor cyclopropanes: efficient routes to cis - and trans -tetrahydrofurans
作者:Jonathan Dunn、Adrian P. Dobbs
DOI:10.1016/j.tet.2015.05.007
日期:2015.9
A detailed study on the synthesis and reactions of silylmethylcyclopropanes is reported. In their simplest form, these donor-only cyclopropanes undergo Lewis acid promoted reaction to give either cis- or trans-tetrahydrofurans, with the selectivity being reaction condition-dependant. The adducts themselves are demonstrated to be an important scaffold for structural diversification. The combination
Highly Stereoselective Prins Cyclization of Silylmethyl-Substituted Cyclopropyl Carbinols to 2,4,6-Trisubstituted Tetrahydropyrans
作者:Veejendra K. Yadav、Naganaboina Vijaya Kumar
DOI:10.1021/ja048000c
日期:2004.7.1
The homoallyl cation formed from a cyclopropyl carbinol that was vicinally substituted by a silylmethyl function underwent smooth Prinscyclization with aldehydes and ketones to form 2,4,6-trisubstituted tetrahydropyrans with very high stereoselectivity.