Ac-D-2Nal-D-Phe(4-Cl)-D-3Pal-Ser-Arg-D-3Pal-Leu-Arg-Pro-D-Ala-OH | 101685-06-7

• 分子结构分类: 有机化合物 - 有机聚合物 - 多肽
• 英文名称: Ac-D-2Nal-D-Phe(4-Cl)-D-3Pal-Ser-Arg-D-3Pal-Leu-Arg-Pro-D-Ala-OH
• 英文别名: (2R)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2R)-2-[[(2R)-2-acetamido-3-naphthalen-2-ylpropanoyl]amino]-3-(4-chlorophenyl)propanoyl]amino]-3-pyridin-3-ylpropanoyl]amino]-3-hydroxypropanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-pyridin-3-ylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]amino]propanoic acid
• CAS: 101685-06-7
• 化学式: C₆₉H₉₁ClN₁₈O₁₃
• 分子量: 1416.05
• InChiKey: FCKCZEZRTZOPST-POKOOEKSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  101
• 可旋转键数：
  38
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  494
• 氢给体数：
  15
• 氢受体数：
  17

反应信息

• 作为产物：
  描述：

  N-BOC-O-苄基-L-丝氨酸 、 Boc-3-(3-吡啶基)-D-丙氨酸 、 N-叔丁氧羰基-D-4-氯苯丙氨酸 、 D-3-(2-萘基)-丙氨酸 、 alkaline earth salt of/the/ methylsulfuric acid 生成 Ac-D-2Nal-D-Phe(4-Cl)-D-3Pal-Ser-Arg-D-3Pal-Leu-Arg-Pro-D-Ala-OH
  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