The invention relates to synthetic processes to produce the known pharmacologically active 9-methoxypsoralen. Also disclosed are various novel intermediates utilized in these processes.
6-Hydroxy-7-methoxy-5-benzofuran carboxaldehyde and
申请人:Hoffmann-La Roche Inc.
公开号:US04150042A1
公开(公告)日:1979-04-17
The invention relates to synthetic processes to produce the known pharmacologically active 9-methoxypsoralen. Also disclosed are various novel intermediates utilized in these processes.
The invention relates to synthetic processes to produce the known pharmacologically active 9-methoxypsoralen. Also disclosed are various novel intermediates utilized in these processes.
1-Thiomethoxsalen and 1-Thiopsoralen: Synthesis, Photobiological Properties, and Site Specific Reaction of Thiopsoralens with DNA
作者:Andreas E. Jakobs、Jacques Piette
DOI:10.1021/jm00006a003
日期:1995.3
The sulfur analogues of psoralen and 8-methoxypsoralen (8-MOP) in the pyrone moiety were synthesized and compared to the parent compounds in terms of photoreactivity with viral M13mp19 RF DNA. The damaged viral DNA was transfected into Escherichia coli and scored for infectivity toward Ca-treated wild-type E. coli. This allowed a comparative study of the sulfur and oxygen analogues to be made in terms of photoreactivity. Furthermore, the DNA sequence specificity for the formation of monoadducts and cross-links of the four analogues was determined with P-32-labeled oligonucleotides containing thymidine in different sequences. The most site specific of the studied psoralens is 8-MOP, while 1-thiopsoralen is the most reactive analogue. This new thio analogue of psoralen leads to the efficient formation of monoadducts and cross-links in any pyrimidine-purine site.