colistin C | 52993-61-0

• 分子结构分类: 有机化合物 - 有机聚合物 - 多肽
• 英文名称: colistin C
• 英文别名: colistin B；octanoyl-Dab-Thr-Dab-Dab(1)-Dab-D-Leu-Leu-Dab-Dab-Thr-(1)；N-[(2S)-4-amino-1-[[(2S,3R)-1-[[(2S)-4-amino-1-oxo-1-[[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxobutan-2-yl]octanamide
• CAS: 52993-61-0
• 化学式: C₅₂H₉₈N₁₆O₁₃
• 分子量: 1155.45
• InChiKey: VTNUBRNXGUOHGX-SSWRVQTPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3
• 重原子数：
  81
• 可旋转键数：
  29
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  491
• 氢给体数：
  18
• 氢受体数：
  18

反应信息

• 作为产物：
  描述：

  在 哌啶 、 水 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 生成 colistin C
  参考文献：
  名称：

  Chemical Conversion of Natural Polymyxin B and Colistin to TheirN-Terminal Derivatives

  摘要：

  研究了天然多粘菌素 B 和秋水仙素（脂肪酰化环十肽）向多粘菌素 (2-10) 和秋水仙素 (2-10) 衍生物的化学转化。无 Nα 和侧链 Nγ 保护的非肽，即四(Nγ-三氟乙酰基)-多粘菌素 B (2-10) 和四(Nγ-三氟乙酰基)-考来霉素 (2-10)是通过对多粘菌素 B 和考来霉素进行三氟乙酰化，然后用 50% 甲磺酸进行化学裂解以去除 Nα-alkanoyl-Nγ- 三氟乙酰基-Dab-OH 而制备的。先在 Thr2 处进行选择性 Nα-酰化，然后用哌啶水溶液去除 Nγ-三氟乙酰基保护基团，Nγ-保护的非肽是半合成 N-末端衍生物的有用起始原料。此外，肉豆蔻酰基多粘菌素 B（2-10）和肉豆蔻酰基多粘菌素（2-10）对大肠杆菌、鼠伤寒沙门氏菌和铜绿假单胞菌的抗菌活性仍为 2-4 毫摩尔毫升/升。它们还保留了较高的脂聚糖（LPS）结合活性。乙酰基多粘菌素 B（2-10）和乙酰基考利司汀（2-10）的生物活性很低，但对铜绿假单胞菌具有很高的杀菌活性，其 MIC 值为 2 nmol mL-1。三种经测试的革兰氏阴性细菌对乙酰-壬肽的不同敏感性表明，脂肪酰化多粘菌素肽的 N 端疏水特性是对大肠杆菌和伤寒沙门氏菌具有杀菌活性的必要条件，但对铜绿假单胞菌却不具有杀菌活性。

  DOI：

  10.1246/bcsj.80.543

文献信息

• POLYMYXIN DERIVATIVE, PREPARATION METHOD AND APPLICATION THEREOF
  申请人：Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences

  公开号：EP3556769A1

  公开（公告）日：2019-10-23

  Provided are a polymyxin derivative having a general formula I structure, and a preparation method and an application thereof. The method for preparing the polymyxin derivative comprises the following steps: (1) an Fmoc-AA-OP side chain free amino group of a protected basic amino acid reacting with a halogenated resin to obtain an Fmoc-AA-OP-resin; (2) the Fmoc-AA-OP-resin being coupled one by one to obtain a linear peptide-resin; (3) the linear peptide-resin selectively removing a protective group, and carrying out solid-phase cyclization to obtain a cyclic peptide-resin; (4) the cyclic peptide-resin undergoing acidic hydrolysis and ether precipitation to obtain a crude product of a cyclic polypeptide; (5) the crude product being purified and/or salt transferred and lyophilized to obtain a pure product of the cyclic polypeptide. The polymyxin derivative may be used for preparing an antibacterial drug, and used in particular for preparing an antibacterial drug having an expanded antibacterial spectrum, improved antibacterial activity and reduced renal toxicity, comprising preparing an antibacterial drug against a "superbugs" which carries the NDM-1 gene.

  本发明提供了一种具有通式 I 结构的多粘菌素衍生物及其制备方法和应用。该多粘菌素衍生物的制备方法包括以下步骤：(1) 受保护的碱性氨基酸的 Fmoc-AA-OP 侧链游离氨基与卤化树脂反应，得到 Fmoc-AA-OP 树脂；(2) 将 Fmoc-AA-OP 树脂逐一偶联，得到线性肽树脂；(3) 线性肽树脂选择性脱去保护基，进行固相环化，得到环状肽树脂；(4) 环肽树脂经过酸性水解和乙醚沉淀，得到环多肽的粗产品； (5) 粗产品经过纯化和/或盐转移和冻干，得到环多肽的纯产品。多粘菌素衍生物可用于制备抗菌药物，特别是用于制备抗菌谱扩大、抗菌活性提高和肾毒性降低的抗菌药物，包括制备针对携带 NDM-1 基因的 "超级细菌 "的抗菌药物。
• Chemical Conversion of Natural Polymyxin B and Colistin to Their<i>N</i>-Terminal Derivatives
  作者：Keiko Okimura、Kazuhiro Ohki、Yuki Sato、Kuniharu Ohnishi、Yoshiki Uchida、Naoki Sakura

  DOI：10.1246/bcsj.80.543

  日期：2007.3.15

  The chemical conversions of natural polymyxin B and colistin, which are fatty-acylated cyclic decapeptides, to polymyxin (2–10) and colistin (2–10) derivatives were examined. The Nα-free and side chain Nγ-protected nonapeptides, i.e., tetrakis(Nγ-trifluoroacetyl)–polymyxin B (2–10) and tetrakis(Nγ-trifluoroacetyl)–colistin (2–10), were prepared by trifluoroacetylation of polymyxin B and colistin, followed by chemical cleavage with 50% methanesulfonic acid to remove Nα-alkanoyl–Nγ-trifluoroacetyl–Dab–OH. The Nγ-protected nonapeptides were useful starting materials for the semi-synthesis of N-terminal derivatives by selective Nα-acylation at Thr2, followed by the removal of the Nγ-trifluoroacetyl protecting group with aqueous piperidine. Further, myristoyl–polymyxin B (2–10) and myristoyl–colistin (2–10) retained their antimicrobial activity with an MIC of 2–4 nmol mL−1 against Escherichia coli, Salmonella Typhimurium, and Pseudomonas aeruginosa. They also retained their high lipopolysaccahride (LPS) binding activity. Acetyl–polymyxin B (2–10) and acetyl–colistin (2–10) exhibited very low biological activities, except for a high bactericidal activity specifically against Pseudomonas aeruginosa with an MIC of 2 nmol mL−1. The distinct sensitivity of three Gram-negative bacteria tested toward acetyl-nonapeptides suggested that the N-terminal hydrophobic character of the fatty-acylated polymyxin peptides was necessary for the bactericidal activity against Escherichia coli and Salmonella Typhimurium, but not against Pseudomonas aeruginosa.

  研究了天然多粘菌素 B 和秋水仙素（脂肪酰化环十肽）向多粘菌素 (2-10) 和秋水仙素 (2-10) 衍生物的化学转化。无 Nα 和侧链 Nγ 保护的非肽，即四(Nγ-三氟乙酰基)-多粘菌素 B (2-10) 和四(Nγ-三氟乙酰基)-考来霉素 (2-10)是通过对多粘菌素 B 和考来霉素进行三氟乙酰化，然后用 50% 甲磺酸进行化学裂解以去除 Nα-alkanoyl-Nγ- 三氟乙酰基-Dab-OH 而制备的。先在 Thr2 处进行选择性 Nα-酰化，然后用哌啶水溶液去除 Nγ-三氟乙酰基保护基团，Nγ-保护的非肽是半合成 N-末端衍生物的有用起始原料。此外，肉豆蔻酰基多粘菌素 B（2-10）和肉豆蔻酰基多粘菌素（2-10）对大肠杆菌、鼠伤寒沙门氏菌和铜绿假单胞菌的抗菌活性仍为 2-4 毫摩尔毫升/升。它们还保留了较高的脂聚糖（LPS）结合活性。乙酰基多粘菌素 B（2-10）和乙酰基考利司汀（2-10）的生物活性很低，但对铜绿假单胞菌具有很高的杀菌活性，其 MIC 值为 2 nmol mL-1。三种经测试的革兰氏阴性细菌对乙酰-壬肽的不同敏感性表明，脂肪酰化多粘菌素肽的 N 端疏水特性是对大肠杆菌和伤寒沙门氏菌具有杀菌活性的必要条件，但对铜绿假单胞菌却不具有杀菌活性。