Invention Grant
US07923564B2 Synthesis of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N′-(4-(2-methylpropyloxy) phenylmethyl)carbamide and its tartrate salt and crystalline forms 有权
N-(4-氟苄基)-N-(1-甲基哌啶-4-基)-N' - (4-(2-甲基丙氧基)苯基甲基)脲和其酒石酸盐和结晶形式的合成

Synthesis of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N′-(4-(2-methylpropyloxy) phenylmethyl)carbamide and its tartrate salt and crystalline forms
Abstract:
Disclosed herein are methods for synthesizing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N′-(4-(2-methylpropyloxy)-phenylmethyl)carbamide. Also disclosed herein is the hemi-tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N′-(4-(2-methylpropyloxy)-phenylmethyl)carbamide and methods for obtaining the salt. Further disclosed are various crystalline forms of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N′-(4-(2-methylpropyloxy)-phenylmethyl)carbamide and its hemi-tartrate salt including various polymorphs and solvates.
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