<i>In Vivo</i> Biodistribution, Pharmacokinetic Parameters, and Brain Uptake of 5-Halo-6-methoxy(or ethoxy)-5,6-dihydro-3‘-azido-3‘-deoxythymidine Diastereomers as Potential Prodrugs of 3‘-Azido-3‘-deoxythymidine
作者:Lili Wang、Kevin W. Morin、Rakesh Kumar、Majid Cheraghali、Kathryn G. Todd、Glen B. Baker、Edward E. Knaus、Leonard I. Wiebe
DOI:10.1021/jm9408326
日期:1996.1.1
A new class of 5-halo-6-alkoxy-5,6-dihydro-3'-azido-3'-deoxythymidine diastereomers (5-x-6-OR -5,6-dihydro-AZTs; X = I, Br, Cl; R = Me, Et) were evaluated as potential anti-AIDS prodrugs of 3'-azido-3'-deoxythimidine (AZT). In vivo regeneration of AZT from these 5-X-6-OR-5,6-dihydro-AZTs was examined in Balb/c mice after intravenous tail vein injection. The (5R,6R)- and (5S,6S)-5-bromo(or iodo)-6-methoxy-5
新型的5-卤代-6-烷氧基-5,6-二氢-3'-叠氮基3'-脱氧胸苷非对映异构体(5-x-6-OR -5,6-dihydro-AZTs; X = I,Br ,Cl; R = Me,Et)被评估为3'-叠氮基3'-脱氧嘧啶(AZT)的潜在抗艾滋病前药。在静脉内尾静脉注射后,在Balb / c小鼠中检查了从这些5-X-6-OR-5,6-二氢-AZT体内AZT的体内再生。AZT(BMAZT,IMAZT)的(5R,6R)-和(5S,6S)-5-溴(或碘)-6-甲氧基-5,6-二氢衍生物迅速转变为AZT,导致AZT血浆浓度144μmol/ kg剂量后的剂量类似于等效剂量(144 microg / kg,38.5 mg / kg)的AZT后的剂量,而在相同剂量的氯非对映异构体(5R,6R)-CMAZT后,HPLC无法检测到AZT 。AZT与5-X-6-甲氧基-5的相互作用 还研究了在鼠红细胞中具有6-