HYDROXYSYRER OG FREMGANGSMAADE TIL FREMSTILLING DERAF

Hydroxy-acid derivs. of formula (I), their 1-4C alkyl esters, and their base-addn. salts are new. In the formula, one of R' and R2 is H and the other is H, 1-6C alkyl, or phenyl opt. substd. by halogen, 1-4C alkyl, 1-4C alkoxy, NO2, amino or 1-4C alkanoylamino; one of R3 and R4 is H and the oth...

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Hauptverfasser: STRAWSON C J, CRAWLEY G C, ALDRIDGE D C
Format: Patent
Sprache:dan
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