Boc-NO2DTrp | 103733-07-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: Boc-NO2DTrp
• CAS: 103733-07-9
• 化学式: C₁₆H₁₉N₃O₆
• 分子量: 349.343
• InChiKey: DBAFJVCGBSUANG-CYBMUJFWSA-N

物化性质

• 沸点：
  605.1±55.0 °C(Predicted)
• 密度：
  1.381±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  25.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  134.56
• 氢给体数：
  3.0
• 氢受体数：
  5.0

反应信息

• 作为产物：
  描述：

  二碳酸二叔丁酯 、 6-硝基-D-色氨酸 在 sodium hydroxide 作用下， 以 水 、 叔丁醇 为溶剂， 反应 2.0h， 以5.7 g的产率得到Boc-NO2DTrp
  参考文献：
  名称：

  New effective gonadotropin releasing hormone antagonists with minimal potency for histamine release in vitro

  摘要：

  In order to minimize the adverse effect of histamine release in the rat of some gonadotropin releasing hormone (GnRH) antagonists, such as [Ac-D2Nal1,D4FPhe2,DTrp3,DArg6]-GnRH, new structures with modifications at positions 1, 2, 3, 5, 6, 7, and 10 were synthesized and tested in several biological systems. In vitro: the affinity for the pituitary GnRH receptor was measured as was the ability of the analogues to inhibit GnRH-stimulated release of luteinizing hormone (LH) by dispersed anterior pituitary cells in culture and to release histamine from rat mast cells. In vivo: inhibition of ovulation in the cycling rat was determined after subcutaneous (sc) injection of the peptides at noon on the day of proestrus; the duration of action of the peptides was evaluated by measuring LH levels in the castrated male rat after sc injection of some selected analogues. [Ac-D2Nal1,D4ClPhe2,D3Pal3,Arg5,D-4-p-methoxy benzoyl-2-aminobutyric acid6,DAla10]-GnRH was found to be one of the most potent analogues of this series, causing a 100% inhibition of ovulation at 5 micrograms/kg or less. Release of histamine was observed at doses 10-25 times that required for [Ac-D2Nal1,D4FPhe2,DTrp3,DArg6]-GnRH. Thus, introduction of arginine in position 5 with a hydrophobic amino acid in position 6 is compatible with high potency in several biological systems and results in compounds with lowered potency to release histamine compared to homologous peptides with tyrosine in position 5 and D-arginine in position 6.

  DOI：

  10.1021/jm00160a008