Antimitotic agents: ring analogs and derivatives of ethyl [(S)-5-amino-1,2-dihydro-2-methyl-3-phenylpyrido[3,4-b]pyrazin-7-yl]carbamate
作者:Carroll Temple、Gregory A. Rener
DOI:10.1021/jm00104a005
日期:1992.12
The synthesis of ring analogues and derivatives of the S isomer of ethyl [5-amino-1,2-dihydro-2-methyl-3-phenylpyrido[3,4-b]pyrazin-7 - yl[carbamate, (S)-1, a potent antimitotic agent with anticancer activity, was directed toward the determination of the contribution of several structural features of this compound to biological activity. Replacement of the 5-amino with a 5(6H)-oxo group and either
[5-氨基-1,2-二氢-2-甲基-3-苯基吡啶并[3,4-b]吡嗪-7-氨基甲酸酯,(S)-的环类似物和S异构体的衍生物的合成在图1中,一种有效的具有抗癌活性的抗有丝分裂剂被用于确定该化合物的几种结构特征对生物活性的贡献。用5(6H)-氧代基取代5-氨基,或者将6-环氮置换或在8位引入环氮会导致体外活性显着降低并破坏体内活性。尽管降低了体内细胞毒性,但通过用氢置换5-氨基并扩展1,2-二氢吡嗪生成二氢-1,4,保留了相对于(S)-1更高剂量的体外活性。 -二氮杂ring环。