光气 、 1-己硫醇 以
甲苯 为溶剂,
以6.1 g (98%)的产率得到S-n-hexyl chlorothioformate
参考文献:
名称:
Fluorogenic or fluorescent reporter molecules and their applications for whole-cell fluorescence screening assays for caspases and other enzymes and the use thereof
Synthesis of α,β-Unsaturated Thiocarboxylic Acid<i>S</i>-Esters via Horner Emmons Olefination
作者:Ernst Schaumann、Bernd Mergardt、Stefan Fittkau
DOI:10.1055/s-1990-26784
日期:——
The title compounds are prepared by an efficient one-pot reaction using readily available phosphonates and S-alkyl carbonchloridothioates. The reaction is capable of variation in the phosphonate and especially in the carbonochloridothioate components.
A series of 5-fluorouracil derivatives having (alkylthio) carbonyl groups at the 1-, 3-, and 1, 3-positions was synthesized and tested for antitumor activity against L-1210 leukemia in mice. Among them, 1-(octylthio) carbonyl-5-fluorouracil showed promising activity ; it gave a greater increase in life span than 1-hexylcarbamoyl-5-fluorouracil (HCFU) and 1-(2-tetrahydrofuryl)-5-fluorouracil (Tegafur), which are both in clinical use.
Fluorogenic or fluorescent reporter molecules and their applications for whole-cell fluorescence screening assays for caspases and other enzymes and the use thereof
申请人:Cytovia, Inc.
公开号:US06335429B1
公开(公告)日:2002-01-01
The present invention relates to novel fluorescent dyes, novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of caspases and other enzymes involved in apoptosis in whole cells, cell lines and tissue samples derived from any living organism or organ. The reporter molecules and assay processes can be used in drug screening procedures to identify compounds which act as inhibitors or inducers of the caspase cascade in whole cells or tissues. The reagents and assays described herein are also useful for determining the chemosensitivity of human cancer cells to treatment with chemotherapeutic drugs. The present invention also relates to novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of type 2 methionine aminopeptidase, dipeptidyl peptidase IV, calpain, aminopeptidase, HIV protease, adenovirus protease, HSV-1 protease, HCMV protease and HCV protease.