Continuously updated synthesis method about 35303-76-5

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 4-(2-Aminoethyl)benzenesulfonamide, other downstream synthetic routes, hurry up and to see.

Reference of 35303-76-5, The chemical industry reduces the impact on the environment during synthesis 35303-76-5, name is 4-(2-Aminoethyl)benzenesulfonamide, I believe this compound will play a more active role in future production and life.

A solution of 4-(2-aminoethyl)benzenesulfonamide (80 mg, 0.40 mmol), AcOH (0.05 mL) and di-tert-butyl 4-(2-bromoacetamido)-4-(3-(tert-butoxy)-3- oxopropyl)heptanedioate (447 mg, 0.81 mmol) in DCE (20 mL) was stirred at 80 °C for 30 min under nitrogen. The reaction mixture was cooled to 0 °C, and treated with NaBH(QAc)3 (0,254 g, 1 ,2 mmol). The reaction mixture was stirred at room temperature for overnight and decomposed with water. The reaction mixture was extracted with DCM. The organic layer was dried and concentrated under reduced pressure. The residue was purified by biotage over silica gel to afford the desired product (322 mg, 63percent). NMR (400 MHz, DMSO-d6) 7.77 (s, 2 H), 7.64 (d, J – 8.0 Hz, 2 H), 7.23 (s. 2 H), 7.21 (d, J = 8.4 Hz, 2 H), 7.01 (s, 2 H), 6.80 (s. 2 H), 4.57 (s. 4 H), 3.61 (s, 4 H), 2.79-2,62 (m, 4 H), 2,09 (t, J = 8.0 Hz, 12 H), 1.76 (t, J = 8.0 Hz, 12 H), 1.32 (s, 54 H); MS (ESI), 636.5 (M/2+H)+.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 4-(2-Aminoethyl)benzenesulfonamide, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MOLECULAR INSIGHT PHARMACEUTICALS; BABICH, John, W; ZIMMERMAN, Craig; JOYAL, John; LU, Genliang; HILLIER, Shawn; MARESCA, Kevin, P; MARQUIS, John; WO2013/103813; (2013); A1;,
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