[EN] PROCESS FOR THE MANUFACTURE OF BRIDGED MONOBACTAM INTERMEDIATES<br/>[FR] PROCÉDÉ DE FABRICATION D'INTERMÉDIAIRES DE MONOBACTAM PONTÉ
申请人:BASILEA PHARMACEUTICA AG
公开号:WO2009037229A1
公开(公告)日:2009-03-26
A process for manufacturing a compound of Formula (I) which has cis-conformation and wherein R1 represents a 1-phenyl-C1-C4alkyl or 1-naphthyl-C1-C4alkyl group, wherein the phenyl or naphthyl moiety of R1 is unsubstituted or substituted with one or more C1-C4alkoxy groups and the carbon atoms in 2-, 3-, and/or 4-position of the alkyl part of R1 are, independently of the phenyl or naphthyl moiety of R1 and independently of one another, unsubstituted or substituted with C1-C4alkoxy and/or silyloxy or, preferably, are unsubstituted or substituted with one C1-C4alkoxy group and/or silyloxy group per carbon atom, and R2 represents a C1-C6alkyl group or an unsubstituted or substituted benzyl group, in which process a compound of Formula (II) wherein R3 represents a C1-C6alkyl group or an unsubstituted or substituted benzyl group, and R1 and R2 have the same meaning as in formula (I); is treated with a base at a temperature of 0°C or less in a liquid aprotic solvent for a time period sufficient to obtain the compound of formula (I).
一种制造具有顺式构象的化合物的方法,其中R1代表1-苯基-C1-C4烷基或1-萘基-C1-C4烷基基团,其中R1的苯基或萘基部分未取代或取代为一个或多个C1-C4烷氧基团,且R1的烷基部分中的第2、3和/或第4位的碳原子,独立于R1的苯基或萘基部分以及彼此独立地,未取代或取代为C1-C4烷氧基和/或硅氧烷基,或者更好地,未取代或取代为每个碳原子一个C1-C4烷氧基和/或硅氧烷基的R2代表C1-C6烷基或未取代或取代的苄基基团,在该方法中,将具有式(II)的化合物在液态非质子溶剂中以0°C或更低的温度用碱处理足够的时间,以获得式(I)的化合物。