作者:Tetsuya Hasegawa、Toshinobu Seki、Kazuhiko Juni、Mineo Saneyoshi、Takeo Kawaguchi
DOI:10.1002/jps.2600821210
日期:1993.12
ester prodrugs of 2',3'-didehydro-3'-deoxythymidine (D4T) were synthesized, and their physicochemical properties were evaluated. Marked differences were observed. All of the prodrugs were chemically stable within the pH range 2-7. Hydrolysis of these esters was observed in all cases for four rat enzyme systems (plasma, liver, duodenum, and kidney), with D4T being regenerated. D4T or the prodrug was administered
合成了6种2',3'-didehydro-3'-脱氧胸苷(D4T)的酯前药,并对其理化性质进行了评估。观察到明显差异。所有前药在2-7的pH范围内化学稳定。在所有情况下,在四个大鼠酶系统(血浆,肝,十二指肠和肾脏)中都观察到了这些酯的水解,并再生了D4T。将D4T或前药口服给予大鼠,并测量D4T和相应的前药的血浆浓度。静脉内给药后D4T的半衰期为35.9分钟。由终期计算的半衰期和口服D4T后血浆中的最大浓度分别为35.9分钟和48.4 microM。口服前药(用水或橄榄油作为溶剂)后,