Novel Mycophenolic Adenine Bis(phosphonate) Analogues As Potential Differentiation Agents against Human Leukemia
作者:Krzysztof W. Pankiewicz、Krystyna B. Lesiak-Watanabe、Kyoichi A. Watanabe、Steven E. Patterson、Hiremagalur N. Jayaram、Joel A. Yalowitz、Michael D. Miller、Michael Seidman、Alokes Majumdar、Gerd Prehna、Barry M. Goldstein
DOI:10.1021/jm0104116
日期:2002.1.1
Novel mycophenolic adenine dinucleotide (MAD) analogues have been prepared as potential inhibitors of inosine monophosphate dehydrogenase (IMPDH). MAD analogues resemble nicotinamide adenine dinucleotide binding at the cofactor binding domain of IMPDH; however, they cannot participate in hydride transfer and therefore inhibit the enzyme. The methylenebis(phosphonate) analogues C2-MAD and C4-MAD were
新型霉酚酚腺嘌呤二核苷酸(MAD)类似物已被制备为肌苷单磷酸脱氢酶(IMPDH)的潜在抑制剂。MAD类似物类似于在IMPDH的辅因子结合域上的烟酰胺腺嘌呤二核苷酸结合。然而,它们不能参与氢化物转移,因此抑制了酶。亚甲基双(膦酸酯)类似物C2-MAD和C4-MAD是通过在二异丙基碳二亚胺存在下将2',3'-O-异丙基亚氨腺苷5'-亚甲基双(膦酸酯)(22)与麦考酚醇20和21偶合而获得的。C2-MAD也可以通过将霉酚酚亚甲基双(膦酸酯)衍生物30与2',3'-O-异丙基亚氨腺苷偶联来制备。在吉川氏反应条件下,用市售的亚甲基双(二氯化膦)处理苄基保护的霉酚醇27,可以方便地合成化合物30。发现C2-MAD和C4-MAD与霉酚酸(IC(50)= 0.3 microM)一样有效地抑制K562细胞的生长(IC(50)= 0.7 microM和IC(50)= 0.1 microM)。另外,C2-MAD