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Wang P, Li Y, Han W, Yan Y, Zhang C, Qu Q, Zhang X, Liu L, Sun X, Yang X, He M. The supramolecular synthon behavior within cocrystals of pyrazinamide and alkyl dicarboxylic acids: A perspective from terahertz spectroscopy and quantum chemical calculation. Talanta 2024; 278:126489. [PMID: 38959667 DOI: 10.1016/j.talanta.2024.126489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024]
Abstract
Pyrazinamide (PZA) is a widely-used anti-tuberculosis pharmaceutical, but its poor solubility prompts us to optimize pharmaceutical performance. Cocrystallization is a promising technique to improve physiochemical properties of active pharmaceutical ingredient (API) by connecting it with cocrystal former (CCF) via intermolecular interactions. Even though a series of alkyl dicarboxylic acids are employed to form cocrystal structures, systematic understanding on the role of intermolecular interactions is still missing. Therefore, terahertz (THz) spectroscopy and quantum chemical calculation are combined to elucidate the behavior of ubiquitous supramolecular synthons, such as hetero-synthons of acid-pyrazine, acid-amide and homo-synthon of amide-amide, from energy's view. Potential energy is calculated to differentiate the stability within polymorphs of PZA-MA cocrystal and free energy is evaluated to compare the solubility of PZA-CCF cocrystals respectively. With regard to vibrational energy, THz spectral fingerprints are theoretically assigned to specific vibrations and attributed to the flexibility deformation of supramolecular synthons based on oscillation theory, where stretching and twisting modes dominate the collective vibrational behavior. It provides a promising tool to evaluate cocrystal performance from its driving force and insightful guidance to discover new pharmaceutical cocrystals.
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Affiliation(s)
- Pengfei Wang
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Zhengzhou 450001, China; Sichuan Innovation Research Institute of Tianjin University, Chengdu 610000, China; State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
| | - Ying Li
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Weifang Han
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yuyue Yan
- Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
| | - Chunyi Zhang
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Qiuhong Qu
- Sichuan Innovation Research Institute of Tianjin University, Chengdu 610000, China
| | - Xu Zhang
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Liyuan Liu
- Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
| | - Xiaohong Sun
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Laser and Opto-electric Information Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaonan Yang
- School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Mingxia He
- Sichuan Innovation Research Institute of Tianjin University, Chengdu 610000, China; State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
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