Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 71176-54-0, name is (5-Amino-1,3-phenylene)dimethanol. This compound has unique chemical properties. The synthetic route is as follows. Computed Properties of C8H11NO2
Compound 23 (5.6 g, 18.52 mmol) was dissolved in DCM (118 mL) andmethanol (58.8 mL). Diol24 (2.70 g, 17.64 mmol) and EEDQ (8.72 g, 35.3 mmol) wereadded and the reaction was stirred at rt overnight. The reaction mixture was concentratedand ethyl acetate was added to the residue. The resulting slurry was filtered, washed with ethyl acetate and dried under vacuum/N2 to give compound 25 as a white solid(2.79 g, 36percent yield). 1H NMR (400 MHz, DMSO-d6): 8 9.82 (s, 1H), 8.05, (d, 1H, J =9.2 Hz), 8.01 (d, 1H, J = 7.2 Hz), 7.46 (s, 2H), 6.95 (3, 1H), 5.21-5.12 (m, 2H), 4.47-4.42 (m, 4H), 4.40-4.33 (m, 1H), 4.33-4.24 (m, 1H), 3.58 (s, 3H), 2.33-2.26 (m, 2H),2.16-2.09 (m, 2H), 1.54-1.46 (m, 4H), 1.30 (d, 3H, J = 7.2 Hz), 1.22 (d, 3H, J = 4.4 Hz). LCMS = 2.894 min (8 min method). Mass observed (ESI+): 438.20 (M+H).
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Reference:
Patent; IMMUNOGEN, INC.; MILLER, Michael, Louis; SHIZUKA, Manami; (163 pag.)WO2018/195243; (2018); A1;,
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