1-Oxa-3,8-diazaspiro(4.5)decan-2-one, 8-(2-(2-pyridyl)ethyl)- 23804-98-0 BRN 0539552 Oxa-1 oxo-2 diaza-3,8 ((pyridyl-2)-2 ethyl)-8 spiro(4,5)decane [French]