Abstract:
:Two prototype N-methyl-4-thio-substituted cyclophosphamide (CP) derivatives (5 and 6), prodrugs of 4-hydroxycyclophosphamide (4-HO-CP), were designed to undergo oxidative N-demethylation to release the active alkylating agent. These prodrugs were chemically stable until oxidatively N-demethylated in the presence of hepatic microsomal P-450 enzymes. While the metabolism of 5 was enhanced in the presence of phenobarbital-induced microsomes, 6 was unaffected. Compound 6 was more active than 5 against L1210 leukemia cells grown in mice and exhibited statistically significant activity against the small cell lung cancer panel in the National Cancer Institute anticancer drug screen. Compound 5, like CP (1), was inactive in this screen. Thus, placement of a dithioester at the 4-position of N-methyl-HO-CP as in 6 markedly changes its spectrum of activity and has resulted in a new type of CP-based prodrug with antitumor activity against small cell lung cancer as well as leukemia cells in vitro as shown by their ability to inhibit tumor cell growth at concentrations as low as 10(-6) M.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Moon KY,Shirota FN,Baturay N,Kwon CHdoi
10.1021/jm00005a012subject
Has Abstractpub_date
1995-03-03 00:00:00pages
848-51issue
5eissn
0022-2623issn
1520-4804journal_volume
38pub_type
杂志文章abstract::The serotonin transporter (SERT) is the primary target for antidepressant drugs. The existence of a high affinity primary orthosteric binding site (S1) and a low affinity secondary site (S2) has been described, and their relation to antidepressant pharmacology has been debated. Herein, structural modifications to the ...
journal_title:Journal of medicinal chemistry
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journal_title:Journal of medicinal chemistry
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更新日期:2012-12-13 00:00:00
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更新日期:2019-11-14 00:00:00
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journal_title:Journal of medicinal chemistry
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更新日期:2003-04-10 00:00:00
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更新日期:2001-04-12 00:00:00
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更新日期:2015-02-12 00:00:00
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journal_title:Journal of medicinal chemistry
pub_type: 杂志文章,评审
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abstract::We have previously shown that the 2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid (AMPA) receptor agonist, 2-amino-3-(3-carboxy-5-methyl-4-isoxazolyl)propionic acid (ACPA, 2), binds to AMPA receptors in a manner different from that of AMPA (1) itself and that 2, in contrast to 1, also binds to kainic acid re...
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