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. Safety of (5-Amino-1,3-phenylene)dimethanol
[0163] Step 5: Compound 84 (5.6 g, 18.52 mmol) was dissolved in anhydrous (0292) dichloromethane (118 mL) and anhydrous methanol (58.8 mL). (5-amino-l,3- phenylene)dimethanol (2.70 g, 17.64 mmol) and EEDQ (8.72 g, 35.3 mmol) were added and the reaction was stirred at room temperature, overnight. The solvent was stripped and ethyl acetate was added. The resulting slurry was filtered, washed with ethyl acetate and dried under vacuum/N2 to give compound 85 (2.79 g, 36% yield). 1H MR (400 MHz, OMSO-d6): delta 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).
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Reference:
Patent; IMMUNOGEN, INC.; BARTLETT, Elizabeth; (91 pag.)WO2017/91745; (2017); A1;,
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