p. 1567 - 1576
(2007/10/02)5-ethylidene-4-hydroxy-3-phenylfuran-2(5H)-one
5-diphenylmethylene-4-hydroxy-3-phenylfuran-2(5H)-one
(E)-4-acetoxy-5-benzylidene-3-phenylfuran-2(5H)-one
4-acetoxy-5-diphenylmethylene-3-phenylfuran-2(5H)-one
(Z)-5-benzylidene-4-ethoxycarbonylmethoxy-3-phenylfuran-2(5H)-one