New greenfluorescentprotein (GFP) chromophoreanalogues, namely 4-(diarylmethylene)imidazolinones (DAINs), were readily synthesized under weakly acidic conditions using a novel condensation reaction between methyl imidate (or thioimidate) and ethyl N-(diarylmethylene)glycinate. DAINs showed notable fluorescence properties. Although they were nearly non-fluorescent in the solution, visible emissions
A small molecular model compound for the green fluorescent proteinchromophore was readily synthesized by a novel condensation reaction of (thio)imidate with imino-ester via an aziridine intermediate. This compound showed fluorescence in the solid and frozen solution states but not in the solution state. Its fluorescent property was successfully applied in the detection of dsDNA.
Dithio- und Thionester, 54. Mitt.: Versuche zur Darstellung von α-Aminodithiosäureestern mit der Bislactimether-Methode
作者:Klaus Hartke、Andreas Brutsche
DOI:10.1002/ardp.19933260202
日期:——
5‐Piperazindithion (8) und nicht Glycindithiomethylester (6). Die durch Alkylieren von 5 erhaltenen Iminiumsalze 9 werden von H2S in die 1,4‐Dialkyl‐2,5‐piperazindithione 10 übergeführt. 5 bildet mit Chlorameisensäuremethylester 2,5‐Bis(methylthio)‐pyrazin (11) undmit Acetanhydrid das 1,4‐Dihydropyrazin 12. Die Sulfhydrolyse der6‐ und 7‐Ring‐Iminiumsalze 14 führt zu den Thiolactamen 15.
TRICYCLIC FUSED PYRIMIDINE COMPOUNDS AS INHIBITORS OF p97 COMPLEX
申请人:Cleave Biosciences, Inc.
公开号:US20170267679A1
公开(公告)日:2017-09-21
Tricyclic fused pyrimidine compounds having an arylalkyl amine substituent at the P4 position and a substituted 1H-indol-1-yl, 1H-indol-3-yl, indanyl, indazol-1-yl, indazol-3-yl, benzotriazol-1-yl or 1H-benz[d]imidazol-1-yl group at the P2 position well as optional aliphatic, functional and/or aromatic components substituted at other positions of the tricyclic compounds of the invention. These compounds are inhibitors of the AAA proteasome complex containing p97 and are effective medicinal agents for treatment of diseases associated with p97 bioactivity such as cancer.
Reaction of lactim ethers and lactim sulfides with electrophiles: attack at nitrogen followed by ring-opening under neutral conditions
作者:Mariappan Anbazhagan、Arun N. Dixit、Srinivasachari Rajappa
DOI:10.1039/a700523g
日期:——
Electrophilic push-pull molecules react at the nitrogen of lactim
ethers and lactim sulfides; subsequent hydrolysis gives ring-opened
products in good yields.