Nucleoside conjugates. 13. Synthesis and antitumor activity of 1-.beta.-D-arabinofuranosylcytosine conjugates of thioether lipids with improved water solubility
摘要:
A series of ara-CDP-rac-1-S-alkyl-2-0-acyl-1-thioglycerols (3-12), analogues of highly active Cytoros2 (1), was prepared, and solubility, lipophilicity, and structure-activity relationships of these conjugates were investigated. The conjugates with sn-1 alkyl (C14) and the sn-2 fatty acyl (>C16) were sparingly soluble. The latter formed micelles upon sonication. Conjugate 7 containing the sn-1 tetradecyl and the sn-2 palmitoyl (C16) groups formed micelles by both sonication and shaking. The partition coefficients (1-octanol/PBS) of the water-soluble conjugates were about 20 times greater than that of ara-C. The water-insoluble showed a more than 40 times increase. A single dose of the micelle-forming conjugates 7 and 10 produced a significant increase in life span (ILS >421 %) with 50 % long-term survivors (>45 days) in mice bearing ip-implanted L1210 lymphoid leukemia. These results were comparable to those of previous micelle-forming conjugate 1 (Cytoros). In contrast, the water-soluble conjugates at single doses were less effective (ILS 81-386% with 0-33% long-term survivors). However, three divided doses of the water-soluble conjugates were found to be as effective as a single dose of micellar solution of the water-insoluble. The results indicate that conjugate 7 and most of the water-soluble derivatives warrant further investigation.
Doren, Henk A. van; Geest, Ralph van der; Kellogg, Richard M., Recueil des Travaux Chimiques des Pays-Bas, 1990, vol. 109, # 3, p. 197 - 203
作者:Doren, Henk A. van、Geest, Ralph van der、Kellogg, Richard M.、Wynberg, Hans
DOI:——
日期:——
Functionally substituted sulfur-containing compounds. 9. Reactions of 2-[(organylthio)methyl]oxiranes with acetic anhydride and acetyl chloride
作者:V. E. Kalugin、V. P. Litvinov
DOI:10.1007/bf00961238
日期:1991.7
Reaction of 2-[(organylthio)methyl]oxiranes with acetic anhydride gives a mixture of 3-(organylthio)-1,2-diacetoxypropane and 2-(organylthio)-1,3-diacetoxypropane, and with acetyl chloride a mixture of 2-chloro-3-(organylthio)-1-acetoxypropane and 3-chloro-2-(organylthio)-1-acetoxypropane. In both cases, the ratio of the isomers depends on the nature of the organylthio group and on the nature of the electrophile.
Notes. Synthesis of the Sulfur Analogs of Batyl and Chimyl Alcohols
作者:D Lawson、Horace Getz、Donald Miller
DOI:10.1021/jo01061a619
日期:1961.2
KALUGIN, V. E.;LITVINOV, V. P., IZV. AN CCCP. CEP. XIM.,(1991) N, S. 1574-1578
作者:KALUGIN, V. E.、LITVINOV, V. P.
DOI:——
日期:——
Nucleoside conjugates. 13. Synthesis and antitumor activity of 1-.beta.-D-arabinofuranosylcytosine conjugates of thioether lipids with improved water solubility
作者:Chung Il Hong、Alexander Nechaev、Alan J. Kirisits、Rakesh Vig、Charles R. West
DOI:10.1021/jm00064a012
日期:1993.6
A series of ara-CDP-rac-1-S-alkyl-2-0-acyl-1-thioglycerols (3-12), analogues of highly active Cytoros2 (1), was prepared, and solubility, lipophilicity, and structure-activity relationships of these conjugates were investigated. The conjugates with sn-1 alkyl (C14) and the sn-2 fatty acyl (>C16) were sparingly soluble. The latter formed micelles upon sonication. Conjugate 7 containing the sn-1 tetradecyl and the sn-2 palmitoyl (C16) groups formed micelles by both sonication and shaking. The partition coefficients (1-octanol/PBS) of the water-soluble conjugates were about 20 times greater than that of ara-C. The water-insoluble showed a more than 40 times increase. A single dose of the micelle-forming conjugates 7 and 10 produced a significant increase in life span (ILS >421 %) with 50 % long-term survivors (>45 days) in mice bearing ip-implanted L1210 lymphoid leukemia. These results were comparable to those of previous micelle-forming conjugate 1 (Cytoros). In contrast, the water-soluble conjugates at single doses were less effective (ILS 81-386% with 0-33% long-term survivors). However, three divided doses of the water-soluble conjugates were found to be as effective as a single dose of micellar solution of the water-insoluble. The results indicate that conjugate 7 and most of the water-soluble derivatives warrant further investigation.