恩替卡韦杂质13
QY-ETKW-13
(9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2- methylenecyclopentyl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-L-alanine
1415118-52-3
C15H19N5O5