Chemical investigations in the synthesis of O-serinyl aminoribosides
摘要:
Glycosylation involving D-ribose derivatives and various N-protected tert-butyl L-serinates can be achieved efficiently by careful choice of the activation method at the anomeric position and of the Lewis acid promoter. The conditions described allow the major formation of the P-anomer required for further elaboration to liposidomycin and caprazamycin analogues. (c) 2005 Elsevier Ltd. All rights reserved.
[EN] 3-SUBSTITUTED beta-LACTAMYL VASOPRESSIN V1A ANTAGONISTS [FR] ANTAGONISTES DE LA VASOPRESSINE V1A 20050421OJIMA ET AL.: "Asymmetric alkylations of a phenylalanylglycinate equivalent. Novel route to dipeptides bearing .alpha.-alkyl.alpha.-amino acid residues", J. AMERICAN CHEMICAL SOCIETY, vol. 112, no. 2, 1990, pages 770 - 774, XP002985507OJIMA ET AL.Asymmetric alkylations of a phenylalanylglycinate equivalent. Novel route to dipeptides bearing .alpha.-alkyl.alpha.-amino acid residuesJ. AMERICAN CHEMICAL SOCIETY19901122770774AAWO03031407A2SERENIX PHARMACEUTICALS LLC [US], et al20030417YYWO9730707A1LILLY CO ELI [US], et al19970828YY
The in vitro transport of model thiodipeptide prodrugs designed to target the intestinal oligopeptide transporter, PepT1
作者:David Foley、Myrtani Pieri、Rachel Pettecrew、Richard Price、Stephen Miles、Ho Kam Lam、Patrick Bailey、David Meredith
DOI:10.1039/b909221h
日期:——
A thiodipeptide carrier system is shown to be effective at enabling a range of covalently bound molecules, including benzyl, benzoyl and ibuprofen conjugates, to be transported via the intestinal peptide transporter PepT1, demonstrating its potential as a rational drug delivery target.
Introduction of the Aib-Pro unit into peptides by means of the ‘azirine/oxazolone method’ on solid phase
作者:Simon Stamm、Heinz Heimgartner
DOI:10.1016/j.tet.2006.07.082
日期:2006.10
A method for the direct introduction of Aib-Pro into peptides on solid phase was developed. The Aib-Pro unit was introduced by means of the ‘azirine/oxazolone method’ using allyl N-(2,2-dimethyl-2H-azirin-3-yl)-l-prolinate as the synthon. After the reaction of the resin-bound amino or peptide acid with allyl N-(2,2-dimethyl-2H-azirin-3-yl)-l-prolinate, the allyl protecting group of the resulting extended
开发了一种将Aib-Pro直接引入固相肽段的方法。的AIB-Pro的单元是由“氮杂环丙烯/恶唑酮的方法”使用烯丙基的手段引入Ñ(2,2-二甲基-2 - ħ -azirin -3-基)-L-脯氨酸作为合成子。在树脂结合的氨基酸或肽酸与N-(2,2-二甲基-2 H-叠氮基-3-基)-1-脯氨酸烯丙酯反应后,可以通过以下方法除去所得延伸肽的烯丙基保护基轻度Pd 0-促进程序。用352nm的紫外光从树脂上切割肽,得到C端保护的肽。该方法成功地用于合成不同的含有肽醇片段的Aib-Pro。此外,通过节段缩合制备了肽抗生素Trichovirin I 1B的受保护衍生物。
[EN] 2-ARYLSULFONAMIDO-N-ARYLACETAMIDE DERIVATIZED STAT3 INHIBITORS<br/>[FR] INHIBITEURS DE STAT3 DÉRIVÉS DE 2-ARYLSULFONAMIDO-N-ARYLACÉTAMIDE
申请人:UNIV HAWAII
公开号:WO2018136935A1
公开(公告)日:2018-07-26
The present disclosure provides pharmaceutical compositions comprising 2-arylsulfonamido-N-arylacetamide derivatized Stat3 inhibitors and certain pharmaceutically acceptable salts thereof, and methods of their use.
Linker Variation and Structure–Activity Relationship Analyses of Carboxylic Acid-based Small Molecule STAT3 Inhibitors
作者:Francisco Lopez-Tapia、Christine Brotherton-Pleiss、Peibin Yue、Heide Murakami、Ana Carolina Costa Araujo、Bruna Reis dos Santos、Erin Ichinotsubo、Anna Rabkin、Raj Shah、Megan Lantz、Suzie Chen、Marcus A. Tius、James Turkson
DOI:10.1021/acsmedchemlett.7b00544
日期:2018.3.8
investigated to design optimized analogues. All three leads are based on an N-methylglycinamide scaffold, with its two amine groups condensed with three different functionalities. The three functionalities and the CH2 group of the glycinamide scaffold were separately modified. The replacement of the pentafluorobenzene or cyclohexylbenzene, or replacing the benzene ring of the aromatic carboxylic or hydroxamic
It was discovered that a cyclic sulfamidate can be produced by reacting an amino acid derivative with a cyclization reagent. In addition, it was discovered that an O-substituted serine derivative can be produced by reacting a cyclic sulfamidate with an alcohol.