{(1R,4S,5S)-4-Hydroxy-5-[2-(3-methoxy-bicyclo[4.2.0]octa-1(6),2,4-trien-7-yl)-ethyl]-5-methyl-cyclopent-2-enyl}-acetic acid

7-<2-(3-Methoxybicyclo<4.2.0>octa-1,3,5-trien-7-yl)ethyl>-7-methylspirohept-5-ene-2,2'-<1,3>dioxolane>

7-<2-(3-Methoxybicyclo<4.2.0>octa-1,3,5-trien-7-yl)ethyl>spirohept-5-ene-2,2'-<1,3>dioxolane>-7-methanol

Methyl 7-<2-(3-Methoxybicyclo<4.2.0>octa-1,3,5-trien-7-yl)ethyl>spirohept-5-ene-2,2'-<1,3>dioxolane>-7-carboxylate

7-<2-(3-Methoxybicyclo<4.2.0>octa-1,3,5-trien-7-yl)ethyl>-spirohept-5-ene-2,2'-<1,3>dioxolane>-7-methanol mesylate