申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2004039814A1
公开(公告)日:2004-05-13
The present invention relates to a compound of the formula [I]: wherein R1 is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene or lower alkenylene; R3 is hydrogen or lower alkyl; R4 is ; R5 is carboxy or protected carboxy; and R6 is amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
本发明涉及一种具有以下式[I]的化合物:其中R1是较低的烷基、羟基(较低)烷基或卤代(较低)烷基,R2是氢或氨基保护基,或者R1和R2结合在一起形成较低的烷基或较低的烯基;R3是氢或较低的烷基;R4是;R5是羧基或保护羧基;R6是氨基或保护氨基,或其药学上可接受的盐,一种制备上述式[I]化合物的方法,以及包含上述式[I]化合物与药学上可接受的载体混合物的药物组合物。