申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US06468995B1
公开(公告)日:2002-10-22
A compound of the formula:
wherein R1 is amino or protected amino;
R2 is hydrogen, lower alkyl or hydroxy protective group;
R3 is carboxy or protected carboxy;
R4 is an unsubstituted 5, 6 or 7-membered heteromonocyclic group containing two nitrogen atoms as heteroatoms, and which optionally further contains one oxygen or sulfur atom; or R4 is said 5, 6 or 7-membered heteromonocyclic group substituted by 1 to 4 groups selected from the group consisting of lower alkyl, lower alkoxy, lower alkylthio, lower alkylamino, cyclo(lower)alkyl, cyclo(lower)alkenyl, halogen, amino, protected amino, protected hydroxy, cyano, nitro, carboxy, hydroxy(lower)alkyl, amino(lower)alkyl, and carbamoyloxy; and
n is 1 or 2.
该化合物的公式为:其中R1是氨基或保护氨基;R2是氢、低级烷基或羟基保护基;R3是羧基或保护羧基;R4是未取代的含有两个氮原子作为杂原子的5、6或7元杂单环族,可选地进一步含有一个氧或硫原子;或者R4是该5、6或7元杂单环族中的1至4个基团所取代,所述基团选自低级烷基、低级烷氧基、低级烷基硫基、低级烷基氨基、环(低级)烷基、环(低级)烯基、卤素、氨基、保护氨基、保护羟基、氰基、硝基、羧基、羟基(低级)烷基、氨基(低级)烷基和氨基甲酰氧基;n为1或2。