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A Comprehensive Cocrystal Screening Study of Chlorothiazide
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-09-13 00:00:00 , DOI: 10.1021/acs.cgd.7b00745
Marwah Aljohani 1 , Anuradha R. Pallipurath 1 , Patrick McArdle 1 , Andrea Erxleben 1
Affiliation  

Cocrystal formation of chlorothiazide (ctz) was screened with a variety of coformers with carboxyl, amide, hydroxyl, sulfonamide, pyridine, amidine, and amine functional groups. New cocrystals with acetamide (aca), benzamide (bza), propionamide (ppa), caprolactam (cap), carbamazepine (cbz), nicotinamide (nia), isonicotinamide (ina), hexamethylenetetramine (hma), 4,4′-bipyridine (bipy), 1,2-di(4-pyridyl)ethylene (ebipy), 2-hydroxypyridine (hyp), 1,3-di(4-pyridyl)propane (pbipy) and pyrazine (pyr) as well as a benzamidinium (bzamH+) salt were obtained by mechanical grinding and liquid-assisted grinding and identified by powder X-ray diffraction. The structures of ctz-bza, ctz-cbz, ctz-ina, ctz-nia, ctz-hma, ctz-bipy, ctz-ebipy, ctz-pbipy, and (bzamH+)(ctz) were determined by single-crystal X-ray diffraction. Analysis of the hydrogen bonding motifs showed that in all cocrystal structures except for ctz-bipy, the NHsulfonamide···N(SO2)═C catemer synthon of ctz form I is replaced by ctz-coformer heterosynthons. The dissolution behavior and relationship between dissolution rate, packing index, and lattice energy of the cocrystals is described. To understand why no cocrystals with carboxylic acids formed, a motif search of the Cambridge Structural Database (CSD) was carried out.

中文翻译:

氯噻嗪的综合共晶筛选研究

用具有羧基,酰胺基,羟基,磺酰胺基,吡啶,am基和胺基官能团的多种共形成物筛选了氯噻嗪(ctz)的共晶形成。与乙酰胺(aca),苯甲酰胺(bza),丙酰胺(ppa),己内酰胺(cap),卡马西平(cbz),烟酰胺(nia),异烟酰胺(ina),六亚甲基四胺(hma),4,4'-联吡啶( bipy),1,2-二(4-吡啶基)乙烯(ebipy),2-羟基吡啶(hyp),1,3-二(4-吡啶基)丙烷(pbipy)和吡嗪(pyr)以及苯甲din通过机械研磨和液体辅助研磨获得bzamH +)盐,并通过粉末X射线衍射鉴定。ctz-bza,ctz-cbz,ctz-ina,ctz-nia,ctz-hma,ctz-bipy,ctz-ebipy,ctz-pbipy和(bzamH +)(ctz 通过单晶X射线衍射测定。氢键基序的分析表明,在除ctz-bipy外的所有共晶体结构中,ctz形式I的NH磺酰胺···N(SO 2)═Ccatemer合成子被ctz-coformer杂合成子取代。描述了共晶的溶解行为以及溶解速率,堆积指数和晶格能之间的关系。为了理解为什么不形成与羧酸共结晶的原因,对剑桥结构数据库(CSD)进行了主题搜索。
更新日期:2017-09-13
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