(S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 1-tert-butyl ester 5-hexadecyl ester | 88887-51-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 1-tert-butyl ester 5-hexadecyl ester
• CAS: 88887-51-8
• 化学式: C₄₀H₆₂N₈O₅
• 分子量: 734.983
• InChiKey: HVCRGOXGCIQCEI-YTTGMZPUSA-N

物化性质

• 密度：
  1.141±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.47
• 重原子数：
  53.0
• 可旋转键数：
  24.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  188.54
• 氢给体数：
  3.0
• 氢受体数：
  12.0

反应信息

• 作为反应物：
  描述：

  (S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 1-tert-butyl ester 5-hexadecyl ester 在 对甲苯磺酸 作用下， 以 苯 为溶剂， 反应 0.75h， 以39%的产率得到methotrexate γ-hexadecyl ester
  参考文献：
  名称：

  Methotrexate analogs. 21. Divergent influence of alkyl chain length on the dihydrofolate reductase affinity and cytotoxicity of methotrexate monoesters

  摘要：

  n-Octyl, n-dodecyl, and n-hexadecyl alpha- and gamma-esters of methotrexate (MTX) were compared with the previously described alpha- and gamma-n-butyl esters and with MTX as inhibitors of dihydrofolate reductase (DHFR) and human leukemic lymphoblasts (CEM cells) in culture. The overall order of activity in both test systems was MTX greater than MTX gamma-esters greater than MTX alpha-esters. In the DHFR assay the activity of the alpha-esters followed the order C4 greater than C8 congruent to C12 greater than C16, whereas for the gamma-esters this order was C4 congruent to C8 greater than C12 greater than C16. On the other hand, the order of cytotoxic activity in culture in both series was C16 greater than C12 greater than C8 greater than C4. Increasing the alkyl chain length in the ester moiety therefore decreases DHFR affinity but increases cytotoxicity. The most potent member of the compounds tested was the gamma-n-hexadecyl ester, whose IC50 against CEM cells was 0.11 microM as compared with 0.025 microM for MTX. In a comparison of the effect of treatment with the gamma-n-hexadecyl ester (10(-5) M, 1 h) on DNA synthesis in CEM and CEM/MTX cells, the latter of which are 120-fold resistant to MTX by virtue of a transport defect, the ester produced only 4-fold less inhibition in the resistant line than in the parental line. These results suggest possible use of this compound or related derivatives in the treatment of MTX-resistant tumors with impaired transport.

  DOI：

  10.1021/jm00371a009
• 作为产物：
  描述：

  (S)-5-(tert-butoxy)-4-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)-5-oxopentanoic acid 、 溴代十六烷 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以71%的产率得到(S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 1-tert-butyl ester 5-hexadecyl ester
  参考文献：
  名称：

  Methotrexate analogs. 21. Divergent influence of alkyl chain length on the dihydrofolate reductase affinity and cytotoxicity of methotrexate monoesters

  摘要：

  n-Octyl, n-dodecyl, and n-hexadecyl alpha- and gamma-esters of methotrexate (MTX) were compared with the previously described alpha- and gamma-n-butyl esters and with MTX as inhibitors of dihydrofolate reductase (DHFR) and human leukemic lymphoblasts (CEM cells) in culture. The overall order of activity in both test systems was MTX greater than MTX gamma-esters greater than MTX alpha-esters. In the DHFR assay the activity of the alpha-esters followed the order C4 greater than C8 congruent to C12 greater than C16, whereas for the gamma-esters this order was C4 congruent to C8 greater than C12 greater than C16. On the other hand, the order of cytotoxic activity in culture in both series was C16 greater than C12 greater than C8 greater than C4. Increasing the alkyl chain length in the ester moiety therefore decreases DHFR affinity but increases cytotoxicity. The most potent member of the compounds tested was the gamma-n-hexadecyl ester, whose IC50 against CEM cells was 0.11 microM as compared with 0.025 microM for MTX. In a comparison of the effect of treatment with the gamma-n-hexadecyl ester (10(-5) M, 1 h) on DNA synthesis in CEM and CEM/MTX cells, the latter of which are 120-fold resistant to MTX by virtue of a transport defect, the ester produced only 4-fold less inhibition in the resistant line than in the parental line. These results suggest possible use of this compound or related derivatives in the treatment of MTX-resistant tumors with impaired transport.

  DOI：

  10.1021/jm00371a009