The perishable nature of 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) in aqueous medium is always considered as a side-effect. The rapid color fading of PTAD inspired us to explore the mechanism of its hydrolysis. Herein, photogenerated nitrile imine is discovered to be an ultra-fast trapping agent to “click” with a ring-opening hydrolysate with an umpolung effect, which resulted in an unprecedented
Construction of Polyheterocyclic Benzopyran Library with Diverse Core Skeletons through Diversity-Oriented Synthesis Pathway: Part II
作者:Mingyan Zhu、Byung Joon Lim、Minseob Koh、Seung Bum Park
DOI:10.1021/co2001907
日期:2012.2.13
diversity-oriented synthesis of polyheterocyclic small-molecule library with privileged benzopyran substructure. To ensure the synthetic efficiency, we utilized the solid-phaseparallel platform and the fluorous-tag-based solution-phase parallel platform to construct a 284-member polyheterocyclic library with six distinct coreskeletons with an average purity of 87% on a scale of 5–10 mg. This library was designed
[EN] TYROSINE-SPECIFIC FUNCTIONALIZED INSULIN AND INSULIN ANALOGS<br/>[FR] INSULINE ET ANALOGUES D'INSULINE FONCTIONNALISÉS SPÉCIFIQUES DE LA TYROSINE
申请人:MERCK SHARP & DOHME
公开号:WO2019182942A1
公开(公告)日:2019-09-26
The present invention relates to tyrosine-specific functionalized insulin analogs and processes of making such tyrosine-specific functionalized insulin analogs using R-3H-1,2,4-triazoline-3,5-(4H)diones (PTAD).
Synthesis of unsymmetrical dihydro triazine-2,4-diones by the N–N bond fragmentation of urazoles followed by intramolecular cyclization
作者:Subhaskar R. Panga、Roger G. Hall、Rashmi V. Samant、Mark Montgomery、Ashok S. Shyadligeri
DOI:10.1016/j.tetlet.2022.154076
日期:2022.9
A new synthesis of unsymmetrical dihydro triazine-2,4- diones has been accomplished, through the strategy of a base-induced fragmentation of urazole derivatives, followed by an intramolecular cyclisation. Treating substituted urazole derivatives with LDA resulted in fragmentation of the N–N bond generating an imine, which was trapped in an intramolecular fashion to give products in good to excellent
본 발명은 암질환을 치료하는 의약품의 제조에 유용한 신규한 벤조피란 유도체에 관한 것으로서, 보다 상세하게는 대식세포 억제 효과를 가지는 저분자 물질로서 이를 이용하여 항암치료의 의약품 제조에 유용한 신규한 벤조피란 유도체에 관한 것이다. 상기 의약품은 특히 면역 대식세포의 분화를 억제함으로써 면역체계를 자극하여 면역 관련된 암질환의 치료에 유용하다.