| 摘要 |
The invention provides a compound having the formula (1), wherein (A) n = 2-4; (B) R1 and R2 are the same or different and selected from the group consisting of H, (C1-C3) alkyl, -CH2CH2OH, -CH2CH2NH2, and -CH2CH2N(CH3)2 or R1 and R2 are alkyl moieties which are taken together to form a 4- to 7-membered ring; (C) R3 is selected from the group consisting of H, -CH3, -CH2CH3, and -CH2CH2NH2; (D) Y is a heterocyclic radical having 5-14 atoms, located at the 2- or 3-position of the pyridoquinazolinone nucleus, in which 1-3 of the heterocyclic ring atoms are independently nitrogen, oxygen, or sulfur; wherein Y may be optionally mono-, di-, or tri-substituted with -OR4, -NR5R6, -CO2H, -CO2R4, or phenyl; R4 is H or (C1-C4) straight-chain alkyl; R5 and R6 are the same or different and are selected from the group consisting of H, (C1-C4) straight-chain alkyl, -CH2CH2OH, -CH2CH2NH2, and -CH2CH2N(CH3)2 or R5 and R6 are alkyl moieties which are taken together to form a 4-7 membered ring; or a pharmaceutically acceptable salt thereof which is useful as an antineoplastic agent.
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