发明名称 UN PROCEDIMIENTO PARA LA RESOLUCION OPTICA DE MEZCLAS RACE- MICAS DE ACIDOS ALFA-NAFTIL PROPIONICOS
摘要 <p>A new process for the optical resolution of racemic mixtures of alpha -naphthyl-propionic acids of formula …<CHEM>… where R1 is an alkyl group, straight or branched, having from 1 to 6 carbon atoms and R2 represents an hydrogen or an halogen atom. …<??>This process comprises reacting a racemic mixture of a compound of formula II …<CHEM>… wherein R1 and R2 have the above seen meanings and R3 is a reactive group, with an optically active compound of formula… R4-NH2      III… wherein R4 is the residue of a primary or secondary alcohol which, taken with the NH2 radical, forms an optically active beta -aminoalcohol, to give a pair of diastereoisomeric amides of</p>
申请公布号 ES549118(D0) 申请公布日期 1986.09.01
申请号 ES19180005491 申请日期 1985.11.21
申请人 ALFA CHEMICALS ITALIANA S.P.A. 发明人
分类号 C07B57/00;C07B31/00;C07C51/00;C07C51/06;C07C51/487;C07C57/38;C07C59/64;C07C67/00;C07C231/00;C07C231/02;C07C231/12;C07C231/20;C07C235/08;C07C235/34;(IPC1-7):C07C59/64;A61K31/19 主分类号 C07B57/00
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