苯硼酸酐

9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one

1',4',4a',8a'-tetrahydro-6'H-dispiro[chromane-2,5'-[1,4]ethanonaphthalene-9',2''-chromane]-6',10'-dione

acetic acid,[2-(hydroxymethyl)phenyl] acetate

2-(acetoxymethyl)phenol