Nor Habibah Mohd Rosli, Mohd Fazli Mohammat, Mohd Abdul Fatah Abdul Manan, David B Cordes, Aidan P McKay
{"title":"Ethyl (2<i>RS</i>,3<i>SR</i>,4<i>RS</i>)-1-ethyl-2-(furan-2-yl)-4-hy-droxy-5-oxopyrrolidine-3-carboxyl-ate.","authors":"Nor Habibah Mohd Rosli, Mohd Fazli Mohammat, Mohd Abdul Fatah Abdul Manan, David B Cordes, Aidan P McKay","doi":"10.1107/S2414314624010885","DOIUrl":null,"url":null,"abstract":"<p><p>The title racemic oxopyrrolidine compound, C<sub>13</sub>H<sub>17</sub>NO<sub>5</sub>, contains three stereogenic centres and crystallizes with two mol-ecules in the asymmetric unit. The five-membered pyrrolidine rings in both mol-ecules exhibit envelope conformations. The <i>N</i>-ethyl group of one of the mol-ecules is disordered over two sets of sites in a 0.836 (4):0.164 (4) ratio. In the crystal, both mol-ecules form inversion dimers through pairwise O-H⋯O hydrogen bonds, generating <i>R</i> <sup>2</sup> <sub>2</sub>(10) loops, which are linked into a three-dimensional network by weak C-H⋯O hydrogen bonds.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 Pt 11","pages":"x241088"},"PeriodicalIF":0.0000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618870/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IUCrData","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1107/S2414314624010885","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/11/1 0:00:00","PubModel":"eCollection","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The title racemic oxopyrrolidine compound, C13H17NO5, contains three stereogenic centres and crystallizes with two mol-ecules in the asymmetric unit. The five-membered pyrrolidine rings in both mol-ecules exhibit envelope conformations. The N-ethyl group of one of the mol-ecules is disordered over two sets of sites in a 0.836 (4):0.164 (4) ratio. In the crystal, both mol-ecules form inversion dimers through pairwise O-H⋯O hydrogen bonds, generating R22(10) loops, which are linked into a three-dimensional network by weak C-H⋯O hydrogen bonds.
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