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Updated: May 20, 2025

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通过使用Fmoc固相合成 (SPPS) 策略合成二氧化酸:一种商业上可行的方法
Kiran Aluri1,2, Srinivas Basavoju2, Jagadeesh B Rangisetty1
1Biophore India Pharmaceuticals Private Limited, Hyderabad, Telangana, India.
概括
在cetrorelix合成期间最大限度地减少种族化是至关重要的. 使用特定的合剂和添加剂在固相合成中降低了L-氨酸和L-氨酸的种族化到0.5%以下.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 分析化学 分析化学
背景情况:
- 固相合成 (SPPS) 是生产类药物的关键技术,如cetrorelix.
- 控制立体化学纯度,特别是尽量减少氨基酸的种族化,对于类药物的有效性和安全性至关重要.
- 在SPPS中广泛使用的Fmoc (氨基甲基氧化碳) 策略,但可能容易导致某些氨基酸的种族化.
研究的目的:
- 为了研究和最小化L-氨酸和L-氨酸在cetrorelix的Fmoc-based SPPS期间的L-氨酸和L-氨酸的种族化.
- 开发和优化一种可靠的分析方法,以分离密切相关的cetrorelix异构体,包括D-氨基酸杂质.
- 制定污染物控制策略,这对于cetrorelix的商业生产和治疗应用至关重要.
主要方法:
- 固相合成 (SPPS) 使用Fmoc战略.
- 使用特定的合剂 (HATU),添加剂 (HOBt或HOAt) 和基 (TMP) 来缓解种族化.
- 发展一个梯度逆相高性能液态染色学 (RP-HPLC) 方法用于异构体分离.
主要成果:
- 在cetrorelix合成过程中,L-氨酸和L-氨酸的种族化成功降低到0.5%以下.
- 优化的RP-HPLC方法有效地分离了结构上相似的cetrorelix异构体.
- 确定D-氨酸和D-氨酸杂质是最难从主要的cetrorelix峰值中分离的.
结论:
- HATU,HOBt/HOAt和TMP的组合有效地抑制了cetrorelix在Fmoc-SPPS中的种族化.
- 建立了一个敏感的RP-HPLC方法来监测关键的同位素杂质.
- 严格控制D-氨基酸杂质对于成功的商业制造和治疗使用cetrorelix至关重要.
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