104837-22-1 2(3H)-Benzoxazolone, 6-(2-chlorobenzoyl)-3-((4-hydroxy-4-phenyl-1-piperidinyl)methyl)- 6-(2-Chlorobenzoyl)-3-((4-hydroxy-4-phenyl-1-piperidinyl)methyl)-2(3H)-benzoxazolone