O-{2-[(1,2,3-triazolyl)-4-[4-(N-maleimidomethyl)cyclohexane-1-carboxamidomethyl]]ethyl}-O'-[(N-diglycolyl-2-aminoethyl)-Phe-Lys-PAB-OCO-20-O-SN-38-10-O-ethoxycarbonyl]heptaethyleneglycol | 1084888-84-5

• 分子结构分类: 有机化合物 - 生物碱及其衍生物 - 喜树碱
• 英文名称: O-{2-[(1,2,3-triazolyl)-4-[4-(N-maleimidomethyl)cyclohexane-1-carboxamidomethyl]]ethyl}-O'-[(N-diglycolyl-2-aminoethyl)-Phe-Lys-PAB-OCO-20-O-SN-38-10-O-ethoxycarbonyl]heptaethyleneglycol
• 英文别名: [(19S)-19-[[4-[[(2S)-6-amino-2-[[(2S)-2-[[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-[[[4-[(2,5-dioxopyrrol-1-yl)methyl]cyclohexanecarbonyl]amino]methyl]triazol-1-yl]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethylamino]-2-oxoethoxy]acetyl]amino]-3-phenylpropanoyl]amino]hexanoyl]amino]phenyl]methoxycarbonyloxy]-10,19-diethyl-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4(9),5,7,10,15(20)-heptaen-7-yl] ethyl carbonate
• CAS: 1084888-84-5
• 化学式: C₈₅H₁₁₀N₁₂O₂₅
• 分子量: 1699.87
• InChiKey: VWTQKEQIYYRYMW-ULGYZUNXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  122
• 可旋转键数：
  58
• 环数：
  10.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  453
• 氢给体数：
  6
• 氢受体数：
  29

反应信息

• 作为产物：
  描述：

  [(19S)-19-[[4-[[(2S)-2-[[(2S)-2-[[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-[[[4-[(2,5-dioxopyrrol-1-yl)methyl]cyclohexanecarbonyl]amino]methyl]triazol-1-yl]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethylamino]-2-oxoethoxy]acetyl]amino]-3-phenylpropanoyl]amino]-6-[[(4-methoxyphenyl)-diphenylmethyl]amino]hexanoyl]amino]phenyl]methoxycarbonyloxy]-10,19-diethyl-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4(9),5,7,10,15(20)-heptaen-7-yl] ethyl carbonate 在 二氯乙酸 、 水 、 苯甲醚 作用下， 以 二氯甲烷 为溶剂， 以86%的产率得到O-{2-[(1,2,3-triazolyl)-4-[4-(N-maleimidomethyl)cyclohexane-1-carboxamidomethyl]]ethyl}-O'-[(N-diglycolyl-2-aminoethyl)-Phe-Lys-PAB-OCO-20-O-SN-38-10-O-ethoxycarbonyl]heptaethyleneglycol
  参考文献：
  名称：

  Antibody Conjugates of 7-Ethyl-10-hydroxycamptothecin (SN-38) for Targeted Cancer Chemotherapy

  摘要：

  CPT-11 is a clinically used cancer drug, and it is a prodrug of the potent topoisomerase I inhibitor, SN-38 (7-ethyl-10-hydroxycamptothecin). To bypass the need for the in vivo conversion of CPT-11 and increase the therapeutic index, bifunctional derivatives of SN-38 were prepared for use in anti body-based targeted therapy of cancer. The general synthetic scheme incorporated an acetylene-azide click cycloaddition step in the design, a short polyethylene glycol spacer for aqueous solubility, and a maleimide group conjugation. Conjugates of a humanized anti-CEACAM5 monoclonal antibody, hMN-14, prepared using, these SN-38 derivatives were evaluated in vitro for stability in buffer and human serum and for antigen-binding and cytotoxicity in a human colon adenocarcinoma cell line. Conjugates of hMN-14 and SN-38 derivatives 16 and 17 were found promising for further development.

  DOI：

  10.1021/jm800719t