溶剂选择和 RESS 处理条件对在超临界二氧化碳中形成吡喹酮-丙二酸共晶体的影响

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2024-09-29 DOI:10.1016/j.supflu.2024.106417

Lauren A. MacEachern , Grace O’Connor , Jamileh Shojaeiarani , Mahmoud Mirmehrabi , Azadeh Kermanshahi-pour

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引用次数: 0

摘要

吡喹酮 (PZQ) 是一种溶解度较低的抗蠕虫药物，因此需要通过共晶体化和缩小粒度来提高生物利用度。本研究采用超临界溶液快速膨胀法（RESS）对 PZQ-丙二酸共晶体进行了微粉化。由于 PZQ 在 scCO2 中的溶解度较低，因此筛选了四种共溶剂作为 RESS 改性剂。加入丙酮或四氢呋喃会产生 PZQ 及其共晶体的混合物，而加入 MeOH 和 EtOH 则会产生纯共晶体。研究了压力（15-30 兆帕）、温度（35-55 °C）和共溶剂添加量（3-10 体积）对相纯度、产量和粒度的影响。在 RESS 中添加共溶剂可促进共晶体形成剂在 scCO2 中的溶解和共晶体的结晶，其产率高达 68.5 wt%，粒度低至 600 nm。结果表明，对于在 scCO2 中溶解度较低的原料药，共溶剂改性 RESS 是一种同时结晶和微粉化的合适方法。

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Influence of solvent selection and RESS processing conditions on formation of a praziquantel-malonic acid cocrystal in supercritical CO2

Praziquantel (PZQ) is an anthelmintic drug with low solubility, therefore cocrystallization and particle size reduction is desirable to improve bioavailability. In this study, a PZQ-malonic acid cocrystal was micronized by rapid expansion of supercritical solution (RESS). Due to low solubility in scCO₂, four cosolvents were screened as RESS modifiers. While addition of acetone or THF yielded mixtures of PZQ and its cocrystal, MeOH and EtOH produced pure cocrystal. Impact of pressure (15–30 MPa), temperature (35–55 °C), and cosolvent loading (3–10 volumes) on phase-purity, yield, and particle size were investigated. Adding cosolvent to RESS facilitated dissolution of cocrystal formers in scCO₂ and crystallization of the cocrystal with yields up to 68.5 wt% and particle size as low as 600 nm. Results show that for APIs with low solubility in scCO₂, cosolvent-modified RESS is a suitable approach for simultaneous crystallization and micronization.

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.