(1S-cis)-1-ethynyl-2-methylenebicyclo(3.1.0)hexane

(1S-cis)-1-ethynylbicyclo[3.1.0]hexan-2-one

[4'R,5'R-(1S-cis)]-1-ethynyl-4',5'-dimethylspiro[bicyclo[3.1.0]hexene-2,2'-[1,3]dioxolane]

(4'R-(2'α(1S*,5R*),4'α,5β))-4',5'-dimethylspiro(bicyclo(3.1.0)hexane-2,2'-(1,3)dioxolane)-1-carboxaldehyde

Inhoffen Lythgoe diol