1-((9,10-Dihydro-4-hydroxy-4H-benzo(4,5)cyclohepta(1,2-b)furan-3-yl)carbonyl)piperidine 83494-82-0 Piperidine, 1-((9,10-dihydro-4-hydroxy-4H-benzo(4,5)cyclohepta(1,2-b)furan-3-yl)carbonyl)- Piperidinocarbonyl-3 hydroxy-4 4H-benzo(4,5)cyclohepta(1,2-b)furanne [French]