Structure–activity relationship study of novel necroptosis inhibitors
摘要:
Necroptosis is a regulated caspase-independent cell death mechanism that results in morphological features resembling necrosis. It can be induced in a FADD-deficient variant of human Jurkat T cells treated with TNF-alpha. 5-(1H-Indol-3-ylmethyl)-2-thiohydantoins and 5-(1H-indol-3-ylmethyl)hydantoins were found to be potent necroptosis inhibitors (called necrostatins). A SAR study revealed that several positions of the indole were intolerant of substitution, while small substituents at the 7-position resulted in increased inhibitory activity. The hydantoin ring was also quite sensitive to structural modifications. A representative member of this compound class demonstrated moderate pharmacokinetic characteristics and readily entered the central nervous system upon intravenous administration. (c) 2005 Elsevier Ltd. All rights reserved.
The present invention relates to compounds and pharmaceutical preparations and their use in therapy for preventing or treating trauma, ischemia, stroke and degenerative diseases associated with cell death. Methods and compositions of the invention are particularly useful for treating neurological disorders associated with cellular necrosis.
The present invention relates to compounds and pharmaceutical preparations and their use in therapy for preventing or treating trauma, ischemia, stroke and degenerative diseases associated with cell death. Methods and compositions of the invention are particularly useful for treating neurological disorders associated with cellular necrosis.
Rapid and efficient syntheses of tryptophans using a continuous-flow quaternization–substitution reaction of gramines with a chiral nucleophilic glycine equivalent
continuous-flow quaternization reaction of gramines with MeI (<1 min) followed by a substitution reaction with a chiral nucleophilic glycine-derived Ni-complex (S)-2 (<1 min) has successfully been developed to afford the corresponding alkylated Ni-complexes 3 in good yields with excellent diastereoselectivity, based on the results of a one-pot quaternization–substitution reaction of gramines with (S)-2 in
成功开发了禾本科植物与 MeI 的连续流动季铵化反应(<1 分钟),然后与手性亲核甘氨酸衍生的 Ni-络合物 ( S )- 2进行取代反应(<1 分钟),得到相应的烷基化 Ni - 基于禾本科化合物与 ( S )- 2在间歇过程中的一锅季铵化-取代反应的结果,以良好的产率和出色的非对映选择性配合物3。连续流动过程允许安全有效地放大合成3j(84% 产率,99% de,540 gh -1),得到 7-氮杂色氨酸衍生物 ( S )- 4j很容易通过酸催化的水解反应,然后用 Fmoc 基团保护。本方法以多种禾本科和( S ) -2为原料快速高效合成对映体纯非天然色氨酸衍生物,将有助于进一步促进多肽和蛋白质药物的发现和开发研究。
Selective anti-cancer compounds
申请人:NATIONAL UNIVERSITY OF SINGAPORE
公开号:US10308631B2
公开(公告)日:2019-06-04
A compound of formula I, wherein the compound of formula I has the structure: wherein R1 to R5, Y, L, Z and X1 to X7 have meanings given in the description, said compounds having utility in the treatment of hyperproliferative disease.
一种式 I 的化合物,其中式 I 的化合物具有如下结构: 其中 R1 至 R5、Y、L、Z 和 X1 至 X7 的含义如描述中所给出,所述化合物在治疗过度增殖性疾病中具有实用性。
Cu-Mediated Oxidative Dimerization of Skatole to Tryptanthrin, an Indolo[2,1-b]quinazolone Alkaloid