7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotics and prodrugs thereof
申请人:Essential Therapeutics, Inc.
公开号:US06723716B1
公开(公告)日:2004-04-20
The present invention relates to a cephem prodrug having formula III or formula IV:
or a pharmaceutically acceptable salt thereof, wherein R′1 is selected from the group consisting of hydrogen and —C(O)CH(NH2)CH3 and R′2 is selected from the group consisting of hydrogen and an acyl group that is cleaved by an enzyme found in mammals, with the proviso that, when either R′1 or R′2 is hydrogen, the other is not. A, B, L, G, E, and J are each independently nitrogen or carbon such that the respective rings are selected from the group consisting of
provided that the group —CH2—S—CH2CH2NHR′2 is attached only to a carbon atom of said heterocyclic group, and Q is selected from the group consisting of nitrogen and —CX, wherein X is selected from the group consisting of hydrogen and chlorine.
本发明涉及具有公式III或公式IV的头孢菌素前药:或其药学上可接受的盐,其中R′1选自氢和—C(O)CH(NH2)CH3的群组,R′2选自由哺乳动物中的酶水解的酰基基团和氢的群组,但当R′1或R′2为氢时,另一个不是氢。A,B,L,G,E和J各自独立地为氮或碳,以使各自的环从所述提供的群组中选择,前提是当仅将—CH2—S—CH2CH2NHR′2基团附加到所述杂环基团的碳原子时,Q选自氮和—CX的群组,其中X选自氢和氯的群组。