苄基氯

4-氧代丁酸苄酯

癸二酸

benzyl 4-((1-((2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)amino)-4-oxobutanoate