Benzyl N-[2-t-Butyldimethylsilyloxy-1(R)-methylethyl]carbamate 在
钯 作用下,
以
乙醇 为溶剂,
以to give 8.55 g of the title compound的产率得到(R)-1-((tert-butyldimethylsilyl)oxy)propan-2-amine
参考文献:
名称:
Thiazolidine and oxazolidine derivatives their preparation and their
[EN] S1P1 AGONISTS COMPRISING A BICYCLIC N-CONTAINING RING<br/>[FR] AGONISTES DE S1P1 COMPRENANT UN CYCLE AZOTÉ BICYCLIQUE
申请人:GLAXO GROUP LTD
公开号:WO2010146105A1
公开(公告)日:2010-12-23
The present invention relates to novel compounds of formula (I) having S1P1 agonist activity, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders.
Pyrimido compounds having antiproliferative activity
申请人:——
公开号:US20040204427A1
公开(公告)日:2004-10-14
Disclosed are novel pyrimido compounds that are selective inhibitors of both KDR and FGFR kinases. These compounds and their pharmaceutically acceptable salts are anti-proliferative agents useful in the treatment or control of solid tumors, in particular breast, colon, lung and prostate tumors. Also disclosed are pharmaceutical compositions containing these compounds and methods of treating cancer.
[EN] BENZOPYRAZOLE COMPOUNDS AND ANALOGUES THEREOF<br/>[FR] COMPOSÉS BENZOPYRAZOLE ET ANALOGUES DE CEUX-CI
申请人:BIOCRYST PHARM INC
公开号:WO2017136395A1
公开(公告)日:2017-08-10
Disclosed are compounds of formula (I), and pharmaceutically acceptable salts thereof. The compounds are inhibitors of the complement system. Also provided are pharmaceutical compositions comprising a compound of formula (I), and methods involving use of the compounds and compositions in the treatment and prevention of diseases and conditions characterized by aberrant complement system activity.
residues. Long-range chiral effects on the α-lactam pseudopeptide conformers were also found when two (i) and (i + 3) chiral residues were attached to the termini of a central -(β-lactam)-(Aib)- segment. In such mimetics, heterochiral (i) and (i + 3) residues reinforced a β-II turn conformer, whereas homochiral corner residues stabilized an overlapped β-II/ β-I double turn motif. No β-hairpin nucleation
新型的对映纯假肽模型,其包含中心-(β-内酰胺)-(Aa)-骨架,其特征在于α-烷基-α-氨基-β-内酰胺(i +1)残基和α-取代的(i + 2)氨基酸很容易从α-烷基丝氨酸合成。使用1D-和2D-NMR技术在CDCl 3和DMSO- d 6溶液中进行的此类β-内酰胺假肽的构象分析显示,β-II转角和γ转角构象异构体之间达到平衡,该平衡最终由β-内酰胺构象的相对构型调节。 -(β-内酰胺)-(Aa)-残基。当两个(i)和(i+3)手性残基连接至中心-(β-内酰胺)-(Aib)-链段的末端。在此类模拟物中,杂手性(i)和(i + 3)残基增强了β-II转弯构象异构体,而同手性角残基则稳定了重叠的β-II/β-I双转弯基序。在任何情况下均未观察到β-发夹形核。与溶液中发现的构象异构体高度吻合,还通过X射线晶体学表征了β转向和开放结构。在B3LYP / 6-31 ++ G **计算水平上计算不
Design and synthesis of novel prostaglandin E2 ethanolamide and glycerol ester probes for the putative prostamide receptor(s)
作者:Erin L. Shelnut、Spyros P. Nikas、David F. Finnegan、Nan Chiang、Charles N. Serhan、Alexandros Makriyannis
DOI:10.1016/j.tetlet.2015.01.164
日期:2015.3
(2-PGE2-G) analogs were designed and synthesized to aid in the characterization of a putative prostamide receptor. Our design incorporates the electrophilic isothiocyanato and the photoactivatable azido groups at the terminal tail position of the prototype. Stereoselective Wittig and Horner–Wadsworth–Emmons reactions install the head and the tail moieties of the PGE2 skeleton. The synthesis is completed using