申请人:Fujisawa Pharmaceutical Co., Ltd
公开号:US20040132994A1
公开(公告)日:2004-07-08
The present invention relates to a compound of the formula [I]:
1
wherein
R
1
is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and
R
2
is hydrogen or amino protecting group, or
R
1
and R
2
are bonded together and form lower alkylene or lower alkenylene;
R
3
is hydrogen or lower alkyl;
R
4
is
2
R
5
is carboxy or protected carboxy; and
R
6
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.
本发明涉及一种化合物,其分子式为[I]:1其中R1是低级烷基,羟基(低级)烷基或卤代(低级)烷基,而R2是氢或氨基保护基,或R1和R2相互结合形成低级亚烷基或低级烯基亚烷基;R3是氢或低级烷基;R4是2;R5是羧基或保护羧基;而R6是氨基或保护氨基,或其药学上可接受的盐,一种制备分子式[I]化合物的方法,以及包含分子式[I]化合物与药学上可接受的载体混合的制药组合物。