کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10161903 1114304 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isostructurality Among 5 Solvatomorphs of Betulin: X-Ray Structure and Characterization
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Isostructurality Among 5 Solvatomorphs of Betulin: X-Ray Structure and Characterization
چکیده انگلیسی
Betulin (BE), a triterpene found in many plant species, has recently attracted the attention of researchers because of its important physiological and pharmacological properties, such as anti-HIV and anticancer activities. Studies have revealed the solvatomorphism of BE (I with dimethyl sulfoxide and III with ethanol, named by author), which means more solvatomorphs may be obtained when different solvents are used during crystallization. After solid-form screening tests, 3 new solvatomorphs of BE with methanol (II), n-propanol (IV), and isopropanol (V) were obtained. In this work, 5 BE solvatomorphs were characterized by X-ray powder diffractometric, thermogravimetric, and Fourier transform infrared spectroscopic analyses. Single-crystal X-ray diffraction was used to analyze the X-ray structures of the compounds, and all 5 solvatomorphs were proven to be isostructral. Change in the crystal symmetry, intermolecular arrangements, stoichiometry, and hydrogen bonding interactions of the solvatomorphs resulted from solvent incorporation to the solvates. Solvatomorphs II, IV, and V, along with their single-crystal structures, were reported for the first time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 105, Issue 6, June 2016, Pages 1867-1873
نویسندگان
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