DT-diaphorase directed anti-tumor agents

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

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548963, A61K 31396, C07D40302, C07D40308

Patent

active

061567442

ABSTRACT:
The present invention relates to a novel benzoquinone, 2,5-diaziridinyl-3-(hydroxymethyl)-6-methyl-1,4-benzoquinone and its esters. The compounds can be used to treat tumors exhibiting elevated levels of the enzyme DT-diaphorase.

REFERENCES:
Winski et al.; Dec. 1998, "A New Screening System for NAD(P)H: Quinone Oxidoreductase (NQO1)-directed Antitumor Quinones: Identification of a New Aziridinylbenzoquinone, RH1, as a NQO1-directed Antitumor Agent" Clincal Cancer Research, 4:3083-3088.
Smitskamp-Wilms, E. et al; DT-diaphorase activity in normal and neoplastic human tissues; an indicator for sensitivity to bioreductive agents; Br.J. Cancer, 72:917-921,(1995).
Gibson, N.W., et al; Relationship between DT-diaphorase mediated metabolism of a series of aziridinylbenzoquinones and DNA damage and cytotoxicity; Mol. Pharmocol., 42:531-536, (1992).
Lee, C.-S., et al; Alteration in DNA cross-linking and sequenec selectivity of a series of aziridinylbenzoquinones after enzymatic reduction by DT-diaphorase; Biochemistry, 31:3019-3025, (1992).
Fitzsimmons, S.A., et al; Reductase enzyme expression ascross the National Cancer Institute tumor cell line panel: Correlation with sensitivity to mitomycin C and EO9; JNCI, 88:259-269, (1996).
Phillips, R.M., et al; Increased activity and expression of NAD(P)H:quinone acceptor oxidoreductase in confluent cell cultures and within multicellular spheroids. Cancer Res., 54:3766-3771, (1994).
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Beall, H.D., et al, Nicotinamide adenine dinucleotide (phosphate):quinone oxidoreductase (DT-diaphorase) as a target for bioreductive antitumor quinones: Quinone cytotoxicity and selectivity in human lung and breast cancer cell lines, Mol.Pharmacol., 48:499-504, (1995).
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Malkinson, A., et al, Elevated DT-diaphorase Activity and Messenger RNA Content in Human Non-Small Lung Carcinoma: Relationship to the Response of Lung Tumor Xenografts to Mitomycin C, Cancer Research, 52: 4752-4757 (1992).
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Kepa, J.K., et al., Comparison of human NQ01 promoter activity in NSCLC and SCLC cell lines. Proc. Am. Assoc. Cancer Res., 38:2515, (1997). Abstract.
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