Synthesis of thio- and oxo-analogues of isopsoralen
作者:Dino J Clarke、Ross S Robinson
DOI:10.1016/s0040-4020(02)00161-8
日期:2002.4
A range of novel 5′-substituted 7-oxo and 7-thioisopsoralens were synthesized via a Claisen rearranged allyl aryl ether followed by reductive ozonolysis in the presence of a suitable solvent. In some cases dimethylthiocarbamoyl chloride was used as a protecting group and to introduce the thiol moiety.
An efficient synthesis (yields >70%) of linear 7H-furo[3,2-g]chromen-7-one derivatives (psoralens or furocoumarins) has been carried out starting from ring-substituted 2-(coumarin-7-yl)oxyaldehydes; moreover, the phototoxicity of these compounds has been tested on a cultured cell line of murine fibroblast.
从环取代的2-(香豆素-7-基)开始,已经进行了线性7 H-呋喃[3,2 - g ] chromen-7-one衍生物(补骨脂素或呋喃香豆素)的有效合成(收率> 70%)。)乙醛; 此外,已经在鼠成纤维细胞的培养细胞系上测试了这些化合物的光毒性。
Convenient two-step syntheses of seselin and angelicin derivatives
作者:Raghao S. Mali、Nalini A. Pandhare、Milind D. Sindkhedkar
DOI:10.1016/0040-4039(95)01410-j
日期:1995.9
Convenient two-step approaches are described for the syntheses of seselin (3a), seselin and angelicin derivatives (3b–d and 5a–d) from 2,4-dihydroxybenzaldehyde (1a) and 2,4-dihydroxyacetophenone (1b) using tandem Claisen rearrangement and Wittig reaction.
Efficient and Short Route for the Regioselective Synthesis of Highly Substituted, Angularly Fused Furano-, Pyrano-, and Pyrrolocoumarin/Quinolone Derivatives by Metal-Mediated Cyclization
作者:K. C. Majumdar、Shovan Mondal、Buddhadeb Chattopadhyay
DOI:10.1080/00397910903219559
日期:2010.6.25
A one-step efficacious method for the construction of a variety of substituted furano-, pyrano-, and pyrrolocoumarins and pyrroloquinolones in good to excellent yields has been developed.