Process for the preparation of 1,3-diaza-spiro (4.4) non-1-en-4-one derivatives and 1-cyano-1-acylaminocyclopentane intermediates

• Main Authors: ZSUZSANNA NAD, ZOLTAN MAKOVI, CSABA HUSZAR, ILONA DERVALICSNE ZRINYI, AGNES KUNSZTNE KARASZ, ATTILA KIS-TAMAS, ENDRE KOLLAR, ISTVAN MESZAROS, ATTILA NEMETH, PETER ARANYOSI, ANTAL GAJARY, ERZSEBET BOGNAR, ZSUZSANNA CSETRINE HARI, KAROLY GYURE, ATTILA SUPIC, KATALIN DUBOVSZKI, LAJOSNE PALI
• Format: Patent
• Language: English
• Published: 16.02.1999
• Edition: 6

Process for the preparation of compounds of formula (I) wherein R means hydrogen atom, or C1-6 alkyl group, or C7-12 aralkyl group or phenyl group, characterised in that a) the compound of formula (III) is reacted with a compound of formula (IV) wherein X means halogen atom or C1-5 alkoxy group or h...