Patent number: 6200974
Abstract: The present invention provides a phenanthroline derivative of formula (I)
wherein, for example,
R1 is hydrogen, carboxy, cyano, nitro, (1-4C)alkyl, (1-6C)alkoxycarbonyl, (1-4C)alkylamino, (2-4C)alkanoyl, (1-4C)alkoxy-(2-4C)alkoxy-(2-4C)alkoxycarbonyl or N-[amino-(2-8C)alkyl]carbamoyl;
R2 is, for example, hydrogen, carboxy, (1-6C)alkoxycarbonyl, carbamoyl, N-(1-8C)alkylcarbamoyl, N,N-di-(1-8C)alkylcarbamoyl, N-(1-4C)alkylcyclohexylcarbamoyl, 1,2,3,4-tetrahydro-isoquinolin-2-ylcarbonyl or N,N-[di-(1-4C)alkyl]thiocarbamoyl;
R3 and R4, which may be the same or different, are, for example, hydrogen or halo; and
R5 is, for example, hydrogen, di-(1-4C)alkylamino or halo; or a pharmaceutically-acceptable salt thereof.
The invention further provides pharmaceutical compositions comprising phenanthroline derivatives, processes for making the same and their use in producing an anti-fibroproliferative effect.
Type:
Grant
Filed:
May 4, 1999
Date of Patent:
March 13, 2001
Assignee:
Zeneca Limited
Inventors:
Philip Neil Edwards, Michael Stewart Large, Neil James Hales
Patent number: 5916898
Abstract: The present invention provides a phenanthroline derivative of formula (I) ##STR1## wherein, for example, R.sup.1 is hydrogen, carboxy, cyano, nitro, (1-4C)alkyl, (1-6C)alkoxycarbonyl, (1-4C)alkylamino, (2-4C)alkanoyl, (1-4C)alkoxy-(2-4C)alkoxy-(2-4C)alkoxycarbonyl or N-?amino-(2-8C)alkyl!carbamoyl;R.sup.2 is, for example, hydrogen, carboxy, (1-6C)alkoxycarbonyl, carbamoyl, N-(1-8C)alkylcarbamoyl, N,N-di-(1-8C)alkylcarbamoyl, N-(1-4C)alkylcyclohexylcarbamoyl, 1,2,3,4-tetrahydro-isoquinolin-2-ylcarbonyl or N,N-?di-(1-4C)alkyl!thiocarbamoyl;R.sup.3 and R.sup.4, which may be the same or different, are, for example, hydrogen or halo; andR.sup.5 is, for example, hydrogen, di-(1-4C)alkylamino or halo; or a pharmaceutically-acceptable salt thereof.The invention further provides pharmaceutical compositions comprising phenanthroline derivatives, processes for making the same and their use in producing an anti-fibroproliferative effect.
Type:
Grant
Filed:
October 24, 1997
Date of Patent:
June 29, 1999
Assignee:
Zeneca Limited
Inventors:
Philip Neil Edwards, Michael Stewart Large, Neil James Hales