کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1223877 | 967903 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification, isolation and characterization of potential degradation product in risperidone tablets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification, isolation and characterization of potential degradation product in risperidone tablets Identification, isolation and characterization of potential degradation product in risperidone tablets](/preview/png/1223877.png)
چکیده انگلیسی
One unknown impurity (degradation product) present at a level below 0.1% in the initial samples increased to a level of 0.5% in 6 M/40 °C/75% RH stability samples of risperidone tablets was detected by gradient reverse-phase high-performance liquid chromatography (HPLC). This impurity was isolated using reverse-phase preparative liquid chromatography. Based on the spectral data the structure of this impurity is characterized as 3-[2-[4-[6-fluoro-1,3-benzoxazol-2-yl]piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a] pyrimidin-4-one. Structural elucidation of this impurity by spectral data (1H NMR, 13C NMR, DEPT, MS and IR), formation and mechanism has been discussed in detail.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 46, Issue 1, 7 January 2008, Pages 165–169
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 46, Issue 1, 7 January 2008, Pages 165–169
نویسندگان
Ch. Bharathi, D. Krishnama Chary, M. Saravana Kumar, Rama Shankar, V.K. Handa, Ramesh Dandala, A. Naidu,