NOVEL BENZONAPHTHYRIDINES AND PHARMACEUTICAL COMPOSITIONS THEREOF
PCT No. PCT/EP97/06096 Sec. 371 Date Apr. 16, 1999 Sec. 102(e) Date Apr. 16, 1999 PCT Filed Nov. 5, 1997 PCT Pub. No. WO98/21208 PCT Pub. Date May 22, 1998Compounds of formula (I) in which R1, R2, R3 and R4 have the meanings indicated in the description, are novel active bronchial therapeutics
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Zusammenfassung: | PCT No. PCT/EP97/06096 Sec. 371 Date Apr. 16, 1999 Sec. 102(e) Date Apr. 16, 1999 PCT Filed Nov. 5, 1997 PCT Pub. No. WO98/21208 PCT Pub. Date May 22, 1998Compounds of formula (I) in which R1, R2, R3 and R4 have the meanings indicated in the description, are novel active bronchial therapeutics |
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