[EN] SYNTHETIC PROCESS FOR THE MANUFACTURE OF ECTEINASCIDIN COMPOUNDS<br/>[FR] PROCÉDÉ DE SYNTHÈSE POUR LA PRÉPARATION DE COMPOSÉS ECTEINASCIDINES
申请人:PHARMA MAR SA
公开号:WO2011147828A1
公开(公告)日:2011-12-01
This invention relates to compounds of formula II: wherein R1, R2, ProtSH, and ProtNH are as defined, to processes for the synthesis of ectainascidins of formula I from compounds of formula II, and to processes for the synthesis of compounds of formula II.
Metal nitrate promoted highly regiospecific <i>ortho</i>–nitration of phenols: Application to the synthesis of nitroxynil
作者:Zafar Iqbal、Asha Joshi、Saroj Ranjan De
DOI:10.1080/00397911.2023.2184270
日期:2023.4.18
Abstract Highly regiospecific ortho–nitration of electronically diverse phenols is accomplished using Fe(NO3)3.9H2O for electron–rich and Cu(NO3)2.6H2O for electron–deficient phenols as the cheap nitrating agents. The reaction is carried out in CH3CN at 90 °C under mild and neutral conditions where structurally diverse phenols afford exclusively ortho–nitration products in moderate to good yields with
摘要 使用 Fe(NO 3 ) 3 .9H 2 O 富电子酚和 Cu(NO 3 ) 2 .6H 2 O 缺电子酚作为廉价的硝化剂,实现电子多样性酚类的高度区域特异性邻位硝化。该反应在 CH 3 CN 中于 90 °C 在温和和中性的条件下进行,其中结构多样的酚类以中等到良好的收率专门提供邻硝化产物,并且具有出色的官能团耐受性。通过实现生物活性化合物硝苯腈,建立了该策略的合成应用。
SYNTHETIC PROCESS FOR THE MANUFACTURE OF ECTEINASCIDIN COMPOUNDS
Anticancer compounds of general formula (I), wherein R1 to R4 take various meanings, for use in the treatment of cancer. A novel Labrenziasp. strain named PHM005 with Accession Deposit Number CECT-9225, a method of producing compounds of the invention and analogues thereof by using the PHM005 strain and the Lab gene cluster codifying the biosynthesis of pederin-like and onnamide-like compounds are also provided.