[d4U]-butyne-[HI-236] as a non-cleavable, bifunctional NRTI/NNRTI HIV-1 reverse-transcriptase inhibitor
摘要:
The synthesis of bifunctional compound 10 consisting of d4U joined at C-5 to a butynyl spacer attached to HI-236 is reported using a Sonogashira coupling as a key step. As a non-cleavable bifunctional HIV inhibitor incorporating an NRTI with an NNRTI, 10 shows good inhibitory activity (EC50 = 250 nM) against HIV (IIIB) replication in NIT-2 cell culture, which is eight times greater than that of d4T and between those of the two component drugs. (c) 2007 Elsevier Ltd. All rights reserved.
The Partial O-Demethylation of Aromatic-Substituted 3,4-Dihydroisoquinolines
作者:A. Brossi、S. Teitel
DOI:10.1002/hlca.19700530726
日期:——
A detailed study has shown that all possible aromatic dimethoxy-substituted 3,4-dihydroisoquinolines can be partially O-demethylated by controlled acid hydrolysis. Based on the structure elucidation of the monophenols thus obtained, it was established that preferential cleavage occurs at the 5-methoxyl with the 5,6- and 5,8-isomers 1 and 3, respectively, at the 6-methoxyl with the 6,8-isomer 4, at