[EN] NOVEL BETULINIC SUBSTITUTED AMIDE DERIVATIVES AS HIV INHIBITORS [FR] NOUVEAUX DÉRIVÉS D'AMIDE SUBSTITUÉS BÉTULINIQUES UTILISÉS COMME INHIBITEURS DU VIH
Synthesis of Prolyl Endopeptidase Inhibitors and Evaluation of Their Structure-Activity Relationships: In Vitro Inhibition of Prolyl Endopeptidase from Canine Brain.
By chemical modification of a known prolyl endopeptidase (PEP) inhibitor (N-[N-(4-phenylbutanoyl)-L-prolyl]pyrrolidine; SUAM-1221), several arylalkanoyl derivatives (V-1-27) were synthesized and tested for in vitro inhibitory activity towards PEP from canine brain. Among them, 4-(2-thienyl)butanoyl derivatives (V-24-27) showed more potent PEP-inhibitory activity than SUAM-1221. The structure-activity relationships of these compounds are discussed.
通过对一种已知的脯氨酰内肽酶(PEP)抑制剂(N-[N-(4-苯基丁酰基)-L-脯氨酰]吡咯烷;SUAM-1221)进行化学修饰,合成了几种芳基烷酰基衍生物(V-1-27),并测试了其对犬脑中 PEP 的体外抑制活性。其中,4-(2-噻吩基)丁酰衍生物(V-24-27)显示出比 SUAM-1221 更强的 PEP 抑制活性。本文讨论了这些化合物的结构-活性关系。
Binaphthyl-Proline Hybrid Chiral Ligands: Modular Design, Synthesis, and Enantioswitching in Cu(II)-Catalyzed Enantioselective Henry Reactions
作者:Chao Yao、Yaoqi Chen、Chao Wang、Ruize Sun、Haotian Chang、Ruiheng Jiang、Lin Li、Xin Wang、Yue-Ming Li
DOI:10.1021/acs.joc.2c01127
日期:——
Chiral O–N–N tridentate ligands were designed from proline and BINOL. Their design strategy and performance were evaluated using a copper(II)-catalyzed asymmetric Henryreaction as a model. The desired β-nitroalcohols were obtained in up to 94% ee’s. Preliminary results suggested that the stereofacial selection of the reactions was mainly controlled by the chiral diamine moiety derived from proline
ASYMMETRIC SYNTHESIS OF <i>N</i>-SUBSTITUTED (<i>R</i>)-2-[(PYRROLIDIN-1-YL)METHYL]PYRROLIDINES
作者:Justin R. Harrison、Peter O'Brien
DOI:10.1081/scc-100103998
日期:2001.1.1
The preparation of (R)-2[(pyrrolidin-1-yl)methyl] pyrrolidine and (R)-1-methyl-2-[(pyrrolidin-1-yl)methyl]pyrrolidine (both in 85% ee) is reported. The key step in the synthesis involves the sparteine-mediated asymmetric functionalization of N-Boc pyrrolidine and subsequent trapping with 1-pyrrolidine-carbonyl chloride.