3,4,5,10-tetrahydroacenaphthene-1-one

5-ethylamino-barbituric acid

1-carboxy-1,2,3,4-tetrahydronaphthalene-1-acetic acid anhydride

ethyl (2E)-2-cyano-2-(3,4-dihydro-2H-naphthalen-1-ylidene)acetate

1-Naphthaleneacetic acid, 1-carboxy-1,2,3,4-tetrahydro-