120744-07-2
3-(Formyloxymethylen)-7,10-dioxo-1-cyclodecen-1,2-dicarbonsaeure-diethylester
120744-11-8
1a,6a-Dihydro-9-oxo-4,6a-hexanooxirenooxepin-5,6-dicarbonsaeure-diethylester

120744-09-4
3-Hydroxy-2,10-dioxo-2,3-dihydro-3,6-hexanooxepin-4,5-dicarbonsaeure-diethylester

120744-08-3
4-Formyl-1-hydroxy-8-oxo-1,3-cyclodecadien-2,3-dicarbonsaeure-diethylester