1H NMR (500 MHz, CDCl3) δ (ppm): 1.25-2.09 (m, 20H), 2.63-2.65 (q, 4H), 4.17-4.22 (q, 4H), 6.08-6.17 (d, 2H), 7.04-7.98 (m, 12H), 8.01-8.09 (d, 2H).LC-MS
(API-ES): m/z C40H44N3O3+ Calcd 614.3, found [M+
] 614.5
Remarks: λe x= 605 nm , λem= 708 nm.
Reference: Chem. Commun. 2012,48, 11757-11759
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