📜(S)-1-((4-Chlorophenyl)(Phenyl)Methyl)Piperazine Oxalate置于sodium Hydroxide体系中,用 正庚烷,水 作为反应溶剂,化学反应 2.0H,反应生成 (S)-1-[(4-氯苯基)苯甲基]哌嗪 参考文献: Processes For The Synthesis Of Levocetirizine And Intermediates For Use Therein[fr] Procédés De Synthèse De Lévocétirizine Et Intermédiaires Pour Une Utilisation Dans Ceux-Ci 标题: Processes For The Synthesis Of Levocetirizine And Intermediates For Use Therein[fr] Procédés De Synthèse De Lévocétirizine Et Intermédiaires Pour Une Utilisation Dans Ceux-Ci
专利号:US-8350031-B2 优先权日:2008-06-02 标 题:Processes for the synthesis of levocetirizine and intermediates for use therein 发明人:RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT 权利人:CIPLA LTD; RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT 摘要:The present invention provides a compound of formula (IV) n nwherein R is Cl, Br, NO 2 , OH or OR′, and R′ is alkyl, and its use in the synthesis of levocetirizine, including its use in the synthesis of (−)-1-[(4-chlorophenyl)-phenylmethyl]piperazine, an intermediate useful in the synthesis of levocetirizine. The present invention also provides compounds (II) and (III) which are useful in the synthesis of compound (IV).
专利号:RU-2118320-C1 优先权日:1993-03-15 标 题:Enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-4-[(4-methylphenyl)sulfonyl]- -piperazine, method of their synthesis, method of synthesis of enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-piperazine, enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-piperazine, enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-piperazine derivatives
专利号:US-2011184174-A1 优先权日:2008-06-02 标题 :Processes for the Synthesis of Levocetirizine and Intermediates for Use Therein
专利号:WO-2009147389-A2 优先权日:2008-06-02 标题:Processes for the synthesis of levocetirizine and intermediates for use therein
参考文献:10.1021/acs.jmedchem.5b00752 摘要:He S, Xiao J, Dulcey AE, Lin B, Rolt A, Hu Z, Hu X, Wang AQ, Xu X, Southall N, Ferrer M, Zheng W, Liang TJ, Marugan JJ. Discovery, Optimization, and Characterization of Novel Chlorcyclizine Derivatives for the Treatment of Hepatitis C Virus Infection. J. Med. Chem. 2016 Feb 01;59(3):841–53. doi: 10.1021/acs.jmedchem.5b00752.