发明名称 IMPROVED PROCESS FOR THE PREPARATION OF (-) TRANS-N-METHYL PAROXETINE
摘要 <p>The present invention relates to an improved process for the preparation of (-) Trans-N-methyl paroxetine of formula (I), which is an intermediate in the synthesis of Paroxetine of formula (II). (-) Trans-N-methyl paroxetine is prepared by reacting (-) trans sulphonate compound of formula (III) with 3,4-methylenedioxyphenol ("sesamol") of formula (IV) in the presence of base potassium carbonate using Methyl isobutyl ketone (MIBK) as solvent.</p>
申请公布号 WO2007034270(A2) 申请公布日期 2007.03.29
申请号 WO2006IB02470 申请日期 2006.09.07
申请人 ORCHID CHEMICALS & PHARMACEUTICALS LIMITED;RAO, SIRIPRAGADA, MAHENDER;ARULMOLI, THANGAVEL;LAKSHMIPATHI, VENU, SANJEEVI;SELVAMUTHU, KALIYAPPAN, BALU 发明人 RAO, SIRIPRAGADA, MAHENDER;ARULMOLI, THANGAVEL;LAKSHMIPATHI, VENU, SANJEEVI;SELVAMUTHU, KALIYAPPAN, BALU
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