3-phenylsulfanyl-3,4-dihydro-2H-furo[2,3-h]chromen-6-ol

6-[(trifluoromethyl)sulfonyl]-3-(phenylthio)-(2,3,4H)-furo[2,3-h]-benzopyran

4-benzofuranyl propiolate

2-oxo-2H-furo[2,3-h]chromene-8-carboxylic acid

8-hydroxy-8,9-dihydro-2H-furo[2,3-h]chromen-2-one