File Entry: Novel polymorph of 5-cyanopthalide high purity intermediate for thepreparation of citalopram and escitalopram
Created: 2012-07-24 12:02:16
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| Title | Novel polymorph of 5-cyanopthalide high purity intermediate for thepreparation of citalopram and escitalopram |
| File name | 23659297-5-Cyanophthalide-manuscript.pdf |
| File size | 89867 |
| SHA1 | 741f3251891de0e3029cbcbb6d10d2a22b032dec |
| Content type | Adobe PDF |
Description
The present invention relates to obtaining a new polymorph of 5-Cyanophthalide in highly pure form (99.5 to 99.99%), which is an intermediate used forthe synthesis of citalopram& escitalopram both of which are potent antidepressant drugs.Moreover this new polymorph of 5-cyanophthalide does not contain impurities liketerephthalic acid & diphthalide derivatives.
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