10-Oxo-9,10-dihydrophenanthrene-<9-spiro-6>-3-oxo-4-acetyl-2,7-dioxa-4- azabicyklo-(3,2,0)heptane

3-acetyl-5-(10-methoxyphenanthren-9-yl)oxy-1,3-oxazol-2-one

10H-Phenanthro<9,10-b>phenanthro<9',10':4,5>furo<2,3-d>pyran-10-on

6-bromo-2-nitrofluoren-9-one

2,2'-biphenyl diboronic acid