7,7-dibromobicyclo[4.1.0]hept-4-ene

Tricyclo<5.1.0.02,4>octan-dicarbonsaeure-(3,8)

(1RS,5RS)-5-acetoxy-bicyclo[2.2.2]octene-(2)

2-Methoxy-3-cyclohexen-1-carbonsaeure-methylester

4-cyclohex-2-en-1-ylmorpholine