The asymmetric synthesis of allylglycine and other unnatural α-amino acids via zinc-mediated allylation of oximes in aqueous media
作者:Stephen Hanessian、Rui-Yang Yang
DOI:10.1016/0040-4039(96)01118-5
日期:1996.7
Enantiomerically pure or highly enriched allylglycine and its chain-substituted analogs are easily accessible from the reaction of the sultam derivative of O-benzyl glyoxylic acidoxime with allylic bromides in the presence of powdered zinc in aqueous ammonium chloride.
Ruthenium-Catalyzed Asymmetric Allylic Alkylation of Isatins
作者:Barry M. Trost、Christopher A. Kalnmals、Divya Ramakrishnan、Michael C. Ryan、Rebecca W. Smaha、Sean Parkin
DOI:10.1021/acs.orglett.0c00504
日期:2020.4.3
synthesis of chiral isatin derivatives. The catalyst, which is generated in situ from commercially available CpRu(MeCN)3PF6 and a BINOL-derived phosphoramidite, is both highly active (TON up to 180) and insensitive to air and moisture. Additionally, the N-alkylated isatins accessible using this methodology are versatile buildingblocks that are readily transformed into chiral analogs of achiral drug molecules
The triethylborane-induced solid-phase radicalreaction was studied. The solid-phase radicalreaction of oxime ether anchored to Wang resin proceeded smoothly to give the α-amino acid derivatives. The carbon–carbon bond-forming radicalreaction of TentaGel OH resin-bound glyoxylic oxime ether proceeded even in aqueous media.
[EN] COMPOUNDS FOR TREATMENT OF GLIOBLASTOMA<br/>[FR] COMPOSÉS DESTINÉS AU TRAITEMENT DU GLIOBLASTOME
申请人:UNIV ALBERTA
公开号:WO2018132905A1
公开(公告)日:2018-07-26
The present invention relates to compounds and methods for the treatment of glioblastoma, as well as to a pharmaceutical composition comprising said compounds. More specifically the invention relates to substituted quinoline derivatives having the formula (I), (II) or (III), and a pharmaceutical composition comprising said compounds for the treatment of cancer. (Formulae (I), (II), (III))
Isatins are valuable intermediates for heterocyclic chemistry. Most of the common methods for their production are less than adequate when the number and lipophilicity of substituents on the targeted isatin are increased. Our group desired such molecules and identified an alternative method for their production.