4-hydroxy-2-quinolones 172*. Synthesis and structure of 4,3'-spiro[(6-allyl-2-amino- 5-oxo-5,6-dihydro-4h-pyrano- [3,2-c]quinoline-3-carbo- nitrile)-2'-oxindole]
摘要:
A three-component condensation of 1-allyl-4-hydroxy-2-oxo-1,2-dihydroquinoline, isatin, and malononitrile gave a satisfactory yield of 4,3'-spiro[(6-allyl-2-amino-5-oxo-5,6-dihydro-4H-pyrano[ 3,2-c] quinoline-3-carbonitrile)-2'-oxindole], which structure was confirmed by X-ray analysis.
Heterocyclic carboxamides, compositions containing such compounds, processes for their preparation and methods of treatment therewith
申请人:AB LEO
公开号:EP0059698A1
公开(公告)日:1982-09-08
This invention relates to novel heterocyclic carboxamides which increase the activity of the immune system and to the preparation thereof.
The invention is also concerned with pharmaceutical compositions containing the said compounds and methods of treatment therewith.