Found: C, 74.59%; H, 6.13%. 1,2-Bis(4-diphenylamino)styryl-3,4,5,6-tetraphenylbenzene (3)[5P-DVTPA] To the mixture of 18 (2.88 g, 3.45 mmol) and compound 12 (2.26 g, 8.29 mmol) in THF(100 ml), NaH (0.3 g, 13 mmol) was added. The reaction mixture was then stirred at room temperature for 72 h. The mixture was quenched with water (300 ml) and then extracted with dichloromethane (400 ml). The organic layer was separated, and the solvent LY294002 concentration was evaporated under reduced pressure. The residue was chromatographed on silica gel with dichloromethane/hexane (1:2) to give 3 (1.2 g, 32.4%) in a yellow solid. M.p. 307°C. 1H NMR (400 MHz, CDCl3): δ = 6.70 to 6.86 (m, 28H), Daporinad ic50 6.90 to 7.10 (m, 18H), 7.20 to 7.32 (m, 14H). 13C NMR (CDCl3): δ = 122.61, 122.73, 123.23, 123.28, 124.89, 124.93, 125.14, 125.20, 126.93, 126.95, 127.30, 127.42, 127.73, 127.81, 127.88, 127.92, 127.95, 129.30, 129.63, 129.72, 131.57, 131.62, 131.74, 131.83, 134.11, 134.33, 140.34, 141.02,141.08.

MS (MALDI-TOF): m/z for C82H60N2 Calcd 1,073.32. Found 1073.24 (M+). Anal. Calcd for C82H60N2: C, 91.75%; H, 5.63%; N, 2.61%. Found: C, 91.62%; H, 5.72%; N, 2.66%. Results and discussion The optical properties of synthesized compounds were summarized in Table 1 and Figures 3 and 4. Figure 3 shows ultraviolet–visible (UV–vis) absorption and PL spectrum data in solution state. Figure 4 exhibits spectrum data in film state. In the solution case, the solvent was used with chloroform (1 × 10-5 M), and 50 nm in thickness was chosen for evaporated film on glass. In Figure 3 and Table 1, 5P-VA had the longest maximum absorption and PL values of 327 and 400 nm, and 5P-VTPA and 5P-DVTPA had the longest maximum absorption values of 367 and 364 nm, and PL maximum (PLmax) values of 446 and 447 nm, respectively. Table 1 Optical properties of synthesized materials Compound Solutiona Filmb Solutiona Filmb

T g T m T d UV max(nm) UV max(nm) PL max(nm) PL max(nm) (°C) (°C) (°C) 5P-VA Ketotifen 276, 327 363 400 460 100 312 388 5P-VTPA 301, 367 307, 376 446 451 108 309 448 5P-DVTPA 289, 364 305, 373 447 461 110 308 449 a10-5 M in chloroform, bfilm thickness of 50 nm. Figure 3 UV–vis absorption spectra of 5P-VA (square, □), 5P-VTPA (circle, ○), 5P-DVTPA (triangle, △) in CHCl 3 solution (1 × 10 -5 M). Figure 4 UV–vis absorption spectra of 5P-VA (square, □), 5P-VTPA (circle, ○), 5P-DVTPA (triangle, △) in film state. Film thickness is 50 nm. As shown in Figure 4 and Table 1, 5P-VA film showed maximum absorption value at 363 nm as well as PLmax value at 460 nm. In the 5P-VTPA and 5P-DVTPA cases, two compounds showed similar absorption maximum values at 376 and 373 nm, but PLmax values were slightly different as 451 and 461 nm.