反应详情

The title compound was prepared according to the procedure in Example 4 using 4-[2-(2-benzyl-benzo[b]thiophen-3-yl)-ethyl]-phenol (0.400 g, 1.16 mmol) and 4-chlorosulphonyl-2-hydroxybenzoic acid (0.550 g, 2.32 mmol). Purification on 2% H3PO4/MeOH treated silica gel, eluting with 20% EtOAc/hexane gave the title compound as an off white solid, mp 57-59° C. 1H NMR (DMSO-d6) δ 2.74 (t, 2H), 3.09 (t, 2H), 4.00 (s, 2H), 6.97 (d, 2H), 7.19-7.23 (m, 5H), 7.27-7.38 (m, 6H), 7.76 (d, 1H), 7.83 (dd, 1H), 7.98 (d, 1H). IR (KBr) 3400, 2950, 1675, 1390 and 1190 cm−1. mass spectrum (−ESI) m/z 543 (M−H).

1. customThe title compound was prepared
2. customPurification on 2% H3PO4/MeOH
3. additiontreated silica gel
4. washeluting with 20% EtOAc/hexane