series of novel L-homoserine lactone analogs and evaluated their in vitro quorumsensing (QS) inhibitory activity against two biomonitor strains, Chromobacterium violaceum CV026 and Pseudomonas aeruginosa PAO1. Studies of the structure-activity relationships of the set of L-homoserine lactone analogs indicated that phenylurea-containing N-dithiocarbamated homoserine lactones are more potent than (Z)-
Mössbauer and nuclear magnetic resonance spectroscopic studies on ‘Myocrisin’, ‘Solganol’, ‘Auranofin’, and related gold(<scp>I</scp>) thiolates
作者:Ali K. H. Al-Sa'ady、Karen Moss、Charles A. McAuliffe、R. V. (‘Dick’) Parish
DOI:10.1039/dt9840001609
日期:——
pentameric, polymeric rings. The 197Au Mössbauer spectra are consistent with linear co-ordination of the gold by two sulphur ligands and, in agreement with the n.m.r. data, show broadening indicative of the presence of non-equivalent gold atoms. The therapeutic compounds appear to be structurally similar to the other gold(I) thiolates.
已经制备了许多硫醇金(I)[Au(SR)],其中R基团是烷基,芳基,羧酸,氨基酸或杂环。大多数在所有常用的溶剂高度不溶,但[AU(SC 6 H ^ 4 R'- p)](R'=乙基,丙基我,卜小号,或卜吨)在有机溶剂中溶解。可溶性化合物的1 H和13 C nmr光谱显示了几组信号,这些信号在高温下会聚结为一组信号,这与流动的,可能是五聚体的聚合物环的存在相一致。在197AuMössbauer光谱与两个硫配体对金的线性配位相一致,并且与nmr数据一致,显示出加宽的迹象表明存在不等价的金原子。治疗化合物似乎在结构上类似于其他硫醇金(I)。
Silyl trifluoromethanesulfonate-activated para-methoxybenzyl methyl ether as an alkylating agent for thiols and aryl ketones
作者:C. Wade Downey、Sarah E. Covington、Derek C. Obenschain、Evan Halliday、James T. Rague、Danielle N. Confair
DOI:10.1016/j.tetlet.2014.07.068
日期:2014.9
para-Methoxybenzyl methyl ether acts as an alkylatingagent for thiols in the presence of trimethylsilyl trifluoromethanesulfonate and trialkylamine base in good yields (58–96%). Aryl ketones are alkylated under similar conditions, probably through an enol silane intermediate, also in high yields (67–95%). The activealkylating species is likely a p-methoxybenzyl cation.
Bismuth Oxide Perchlorate as a Highly Efficient Catalyst for Heteroatom Acylation Under Solvent-Free Conditions
作者:Asit K. Chakraborti、Rajesh Gulhane、Shivani
DOI:10.1055/s-2003-41442
日期:——
Bismuth oxide perchlorate efficiently catalyzes the acetylation of structurally diverse phenols, alcohols, thiols, and amines undersolventfree conditions. Sterically hindered and electron deficient phenols are acetylated in excellent yields with stoichiometric amounts of Ac 2 O at room temperature. Acylation of acid-sensitive alcohols is carried out efficiently without competitive side reactions
高氯酸铋在无溶剂条件下有效催化结构不同的酚、醇、硫醇和胺的乙酰化。空间位阻和缺电子酚在室温下用化学计量的 Ac 2 O 以极好的收率乙酰化。酸敏感醇的酰化可以有效地进行,没有竞争性副反应。光学活性底物被乙酰化,对光学纯度没有任何不利影响。
[EN] N-ACYL AMINO ACID COMPOUNDS AND METHODS OF USE<br/>[FR] COMPOSÉS D'ACIDES AMINÉS N-ACYLE ET MÉTHODES D'UTILISATION
申请人:PLIANT THERAPEUTICS INC
公开号:WO2018049068A1
公开(公告)日:2018-03-15
The invention relates to compounds of formula (I), or a salt thereof wherein R1, A, L, and R2 and n are as described herein. Compounds of formula (I) and pharmaceutical compositions thereof are ανβ1 integrin inhibitors that are useful for treating tissue specific fibrosis.