Synthetic studies on the relationship between anti-HIV activities and micelle forming abilities of various alkylated glycyrrhetinate diglycoside sodium sulfates and related compounds
摘要:
Sodium sulfates 11-14, 29-32, 35 and 37 of various alkyl glycyrrhizin and related compounds were synthesized. In vitro anti-HIV activities of the sulfates were compared to the activities of glycyrrhizin 1 in the inhibition of replications of HTLV-III and GUN-4. The activities of the sulfates were increased 11.1, 15.2, 9.1 and 5.0 times for 11-14, 100.0, 125.5, 83.3 and 11.6 times for 29-32, and 11.6 and 50.0 times for 35 and 37. From the relationship between CMC values and anti-HIV activities of the sulfates, it appeared that the sulfates exhibiting more potent antiviral activities had higher micelle forming abilities. Sodium sulfates having a triterpenoid or steroid ring in the molecule showed more potent activities than those of thioglycosides which had no such ring. From the investigation of syncytium formation, we suggest that the active sulfates inhibited HIV-1 infection early in the replication cycle of the virus.