The synthesis and photochemical study of a family of molecular switches inspired by the green fluorescent protein (UP) chromophore is presented. These compounds can be easily synthesized, and their photophysical properties may be tuned. Due to their efficient photoisomerization and high stability, these compounds can be switched on/off by using light and heat or light with different wavelengths.
METHOD OF SCREENING FOR AGENTS FOR DIFFERENTIATING STEM CELLS
申请人:MINERVA BIOTECHNOLOGIES CORPORATION
公开号:US20180263964A1
公开(公告)日:2018-09-20
The present application discloses a method for identifying an agent for the treatment or prevention of cancer or metastatic cancer comprising the steps of contacting stem cell with a potential agent, and identifying an agent that induces differentiation, or inhibits stem cell pluripotency or growth of the stem cell, wherein such agent is determined to be an anti-cancer agent.
Reaction of 4-benzylidene-2-methyl-5-oxazolone with amines, Part 2: Influence of substituents in para-position in the phenyl ring and a substituent on amine nitrogen atom on the reaction kinetics
ring-opening reaction was studied. The substituents (OH, OCH3, N(CH3)2, Cl, NO2) in para-position of the phenyl ring of Ox substantially modified the rate of the reaction with benzylamine in acetonitrile. The rate of the Ox ring-opening reaction decreased with increase of the electron-donating properties of the substituent. A good correlation between the rate constants of the reaction of 4-(4′-sub
Compounds are provided which are inhibitors of the CAXII enzyme. Due to the interaction between CAXII and Pgp, such compounds may be useful in lowering the chemoresistance of a cancer allowing for co-administration with existing anti-cancer agents.
Thiourea to bicyclic scaffolds: highly regio- and stereoselective routes to dithiazolopyrimidines
作者:Lal Dhar S. Yadav、Vijai K. Rai
DOI:10.1016/j.tet.2007.04.033
日期:2007.7
Microwave-activated solvent-free Michael addition of 3-imino-1,4,2-dithiazoles to 4-arylidene-5(4H)-oxazolones furnished isolable adducts regio- and diastereoselectively, which underwent ring transformation to yield the target dithiazolopyrimidines. Alternatively, the similar conjugate addition of methanesulfinylmethylisothioureas to 4-arylidene-5(4H)-oxazolones diastereoselectively afforded Michael
Process for the preparation of n-acetylphenylalanine
申请人:Hoechst Aktiengesellschaft
公开号:US04892971A1
公开(公告)日:1990-01-09
In the process for the preparation of N-acetylphenylalanine by opening the ring of 2-methyl-4-benzylidene-1,3-oxazolin-5-one with water to give 2-acetaminocinnamic acid and subsequently catalytically hydrogenating the latter, both reaction stages are carried out in a mixture of an aliphatic C.sub.3 -ketone to C.sub.10 -ketone or a water-miscible ether and water as the solvent, and the hydrogenation of the 2-acetaminocinnamic acid is carried out at temperatures of 10.degree. to 50.degree. C. and pressures of 1 to 15 bar in the presence of a supported palladium catalyst.