2-Diazo-2,3,4,7-tetrahydro-3a,7a-etheno-inden-1-one

((1R,6S)-bicyclo[4.2.0]octa-3,7-diene-1,6-diyl)bis(methylene) bis(4-methylbenzenesulfonate)

Bicyclo<4.2.0>octa-3,7-dien-1,6-dicarbonsaeureanhydrid

Bicyclo<4.3.0>nona-1(6),3-dien-7-one

((1S,6R)-6-Hydroxymethyl-bicyclo[4.2.0]octa-3,7-dien-1-yl)-methanol