Resolution of RacemicN-Benzyl α-Amino Acids by Liquid-Liquid Extraction: A Practical Method Using a Lipophilic Chiral Cobalt(III) Salen Complex and Mechanistic Studies
作者:Pawel Dzygiel、Toby B. Reeve、Umberto Piarulli、Martin Krupicka、Igor Tvaroska、Cesare Gennari
DOI:10.1002/ejoc.200701101
日期:2008.3
efficient resolution of racemic N-benzyl α-aminoacids (N-Bn-AA) has been achieved by a liquid-liquidextraction process using the lipophilicchiralsalen–cobalt(III) complex [CoIII(3)(OAc)]. As a result of the resolution by extraction, one enantiomer (S) of the N-benzyl α-aminoacid predominated in the aqueous phase, while the other enantiomer (R) was driven into the organic phase by complexation to cobalt
Peptides, process for preparing the same and psychodepressant compositions containing the same
申请人:AMANO PHARMACEUTICAL CO., LTD.
公开号:EP0107860A1
公开(公告)日:1984-05-09
This invention provides a peptide represented by the formula R-Tyr(SO3H)-Met-Gly-Trp-Met-Asp-W-NH2 wherein R is HOOC-A-CO-Asp- (wherein A is lower alkylene), pGlu-Asp-, HOOC-A-CO (wherein A is lower alkylene) or
and W is Phe or N"-lower alkyl-Phe, or a salt thereof, process for preparing the peptide and psychodepressant composition containing the peptide.
The peptides of the invention are useful as psychodepressant drug, and especially effective for curing schizophrenia.
本发明提供了由式 R-Tyr(SO3H)-Met-Gly-Trp-Met-Asp-W-NH2代表的多肽,其中 R 是 HOOC-A-CO-Asp-(其中 A 是低级亚烷基)、pGlu-Asp-、HOOC-A-CO(其中 A 是低级亚烷基)或
和 W 是 Phe 或 N"-低级烷基-Phe,或其盐,制备该肽的工艺和含有该肽的精神抑郁症组合物。
本发明的多肽可用作精神抑郁症药物,尤其对治疗精神分裂症有效。
US4517180A
申请人:——
公开号:US4517180A
公开(公告)日:1985-05-14
USRE32534E
申请人:——
公开号:USRE32534E
公开(公告)日:1987-10-27
Synthesis and utilization of a novel glycine derived chiral precursor, based on a recyclable L-Prolinol auxiliary, for the enantioselective preparation of α-amino acids and their N-methyl derivatives
作者:Ganesh Pandey、P.Yella Reddy、Parthasarathi Das
DOI:10.1016/0040-4039(96)00488-1
日期:1996.4
α-Amino Acids and their N-Methyl derivatives are synthesised in fairly high optically purity employing a new glycine derived template based on a recyclable L-Prolinol chiralauxiliary.