[(19S)-19-ethyl-8-nitro-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-19-yl] cyclohexanecarboxylate

• 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: [(19S)-19-ethyl-8-nitro-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-19-yl] cyclohexanecarboxylate
• 化学式: C₂₇H₂₅N₃O₇
• 分子量: 503.511
• InChiKey: USPTZKSYBADSKA-MHZLTWQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  37
• 可旋转键数：
  4
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  132
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  鲁比替康 、 环己甲酰氯 在 吡啶 作用下， 以 丙酮 为溶剂， 反应 15.0h， 以63%的产率得到[(19S)-19-ethyl-8-nitro-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-19-yl] cyclohexanecarboxylate
  参考文献：
  名称：

  Alkyl Esters of Camptothecin and 9-Nitrocamptothecin:  Synthesis, in Vitro Pharmacokinetics, Toxicity, and Antitumor Activity

  摘要：

  Eleven camptothecin esters, 6a-e and 7a-f, were prepared by straightforward acylation of camptothecins with the corresponding acylating reagents such as organic anhydrides and carboxylic acid chlorides. The in vitro pharmacokinetic determination of lactone levels of esters 6a and 7b showed that the biological life span of their lactone forms in human and mouse plasma significantly increased when compared with their mother compounds, camptothecin (3) and 9-nitrocamptothecin (4). The differences of lactone levels between human plasma and mouse plasma for 6a and 7b were much smaller than what was observed for their mother compounds. The in vivo antitumor activity and toxicity studies demonstrated that some of these esters were very active against human tumor xenografts in nude mice and had an exceptional lack of toxicity in nude mice, even at enormous doses.

  DOI：

  10.1021/jm9607562

文献信息

• Alkyl Esters of Camptothecin and 9-Nitrocamptothecin:  Synthesis, in Vitro Pharmacokinetics, Toxicity, and Antitumor Activity
  作者：Zhisong Cao、Nick Harris、Anthony Kozielski、Dana Vardeman、John S. Stehlin、Beppino Giovanella

  DOI：10.1021/jm9607562

  日期：1998.1.1

  Eleven camptothecin esters, 6a-e and 7a-f, were prepared by straightforward acylation of camptothecins with the corresponding acylating reagents such as organic anhydrides and carboxylic acid chlorides. The in vitro pharmacokinetic determination of lactone levels of esters 6a and 7b showed that the biological life span of their lactone forms in human and mouse plasma significantly increased when compared with their mother compounds, camptothecin (3) and 9-nitrocamptothecin (4). The differences of lactone levels between human plasma and mouse plasma for 6a and 7b were much smaller than what was observed for their mother compounds. The in vivo antitumor activity and toxicity studies demonstrated that some of these esters were very active against human tumor xenografts in nude mice and had an exceptional lack of toxicity in nude mice, even at enormous doses.