Fused purine derivatives

Fused purine derivatives

The present invention provides condensed purine derivatives or pharmacologically acceptable salts thereof exhibiting adenosine A3 acceptor antagonising activity , and having an antiasthmatic action, a bronchodilator action, an antiantiitching action, etc., and represented by the following formula (I...

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Hauptverfasser: NOBUO KOSAKA, HIROMI NONAKA, JUNICHI SHIMADA, HIROSHI TSUMUKI, MAYUMI SAKI, SHUNJI ICHIKAWA, MICHIO ICHIMURA, FUMIO SUZUKI
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator NOBUO KOSAKA
HIROMI NONAKA
JUNICHI SHIMADA
HIROSHI TSUMUKI
MAYUMI SAKI
SHUNJI ICHIKAWA
MICHIO ICHIMURA
FUMIO SUZUKI
description The present invention provides condensed purine derivatives or pharmacologically acceptable salts thereof exhibiting adenosine A3 acceptor antagonising activity , and having an antiasthmatic action, a bronchodilator action, an antiantiitching action, etc., and represented by the following formula (I): (wherein R represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group; R represents hydrogen, lower alkyl, alicyclic alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; R represents hydrogen, lower alkyl, or substituted or unsubstituted aralkyl; X and X are the same or different and each represents hydrogen, lower alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and n represents an integer of 0 to 3).
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R represents hydrogen, lower alkyl, alicyclic alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; R represents hydrogen, lower alkyl, or substituted or unsubstituted aralkyl; X and X are the same or different and each represents hydrogen, lower alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and n represents an integer of 0 to 3).</description><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBwKy1OTVEoKC3KzEtVSEktyixLLMksSy3mYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXxjqEmJuaGRpbmjsaEVQAAgyEhuQ</recordid><startdate>19980505</startdate><enddate>19980505</enddate><creator>NOBUO KOSAKA</creator><creator>HIROMI NONAKA</creator><creator>JUNICHI SHIMADA</creator><creator>HIROSHI TSUMUKI</creator><creator>MAYUMI SAKI</creator><creator>SHUNJI ICHIKAWA</creator><creator>MICHIO ICHIMURA</creator><creator>FUMIO SUZUKI</creator><scope>EVB</scope></search><sort><creationdate>19980505</creationdate><title>Fused purine derivatives</title><author>NOBUO KOSAKA ; 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R represents hydrogen, lower alkyl, alicyclic alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; R represents hydrogen, lower alkyl, or substituted or unsubstituted aralkyl; X and X are the same or different and each represents hydrogen, lower alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and n represents an integer of 0 to 3).</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title Fused purine derivatives
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