anti-tricyclo(4.3.1.1[2,5])undec-3-en-10-one

2-chloro-1-(trimethylsilyloxy)cyclohex-1-ene

((6-chlorocyclohex-1-en-1-yl)oxy)trimethylsilane

tetrahydro(8,9,10,11)benzo(b)naphto(1,2-d)thiophene