Resolution of racemic carbocyclic analogs of purine nucleosides through the action of adenosine deaminase. Antiviral activity of the carbocyclic 2'-deoxyguanosine enantiomers
作者:John A. Secrist、John A. Montgomery、Y. Fulmer Shealy、C. Allen O'Dell、Sarah Jo Clayton
DOI:10.1021/jm00387a032
日期:1987.4
The action of adenosine deaminase on racemic carbocyclic analogues of 6-aminopurine nucleosides was investigated. When either racemic carbocyclic adenosine [(+/-)-C-Ado] or the racemic carbocyclic analogue [(+/-)-C-2,6-DAP-2'-dR] of 2,6-diaminopurine 2'-deoxyribofuranoside was incubated with this enzyme, approximately half of the material was deaminated rapidly. From the resulting solution, the D isomers
研究了腺苷脱氨酶对6-氨基嘌呤核苷的外消旋碳环类似物的作用。当外消旋碳环腺苷[(+/-)-C-Ado]或外消旋碳环类似物[(+/-)-C-2,6-DAP-2'-dR]为2,6-二氨基嘌呤2'-用该酶孵育脱氧核糖呋喃糖苷,将大约一半的物质快速脱氨基。从所得溶液中,分离出脱氨基碳环类似物的D异构体(D-碳环肌苷,DC-Ino或D-碳环2'-脱氧鸟苷,D-2'-CDG)和未脱碳碳环类似物的L异构体。 。在较高的酶浓度下,LC-Ado和LC-2,6-DAP-2'-dR的脱氨基反应缓慢进行,因此也使其他对映异构体可及。在针对1型和2型单纯疱疹病毒的体外测试中,D-2' -CDG与(+/-)-2'-CDG一样有效,而L-2'-CDG仅显示适度的活性。与先前报道的针对这两种病毒的(+/-)-C-2,6-DAP-2'-dR高活性和效力相反,LC-2,6-DAP-2'-dR没有活性。