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To a solution of 2-(4-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)-4,5-dihydrobenzo[b] thieno[2,3-d]oxepin-8-amine HCl salt (0.5 g, 1.16 mmol) in dried DCM (30 mL) was added DIPEA (0.61 mL, 3.48 mmol). The solution was stirred at 0° C. for 20 min and 2-chloro-acetyl chloride (0.2 g, 1.74 mmol) was added dropwise. The mixture was allowed to reach room temperature and stirred for a further 2 hours. The reaction solution was poured into ice water and extracted with EtOAc. The organics were combined, dried over Na2SO4 and evaporated in vacuum to afford the crude product (0.45 g, yield: 82%). 2-chloro-N-(2-(4-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepin-8-yl)acetamide (0.2 g, 0.424 mmol) was mixed with HCl salt of NH(CH3)2 (0.172 g, 2.12 mmol) and NEt3 (0.3 mL, 2.12 mmol) in 15 mL of DCM. The solution was stirred at room temperature for 4 hours and quenched with ice water. Extraction with EtOAc and evaporation of the organics gave the crude product. It was purified by preparative TLC to afford 237 (40 mg, isolated yield: 20%).

1. customto reach room temperature
2. stirringstirred for a further 2 hours
3. extractionextracted with EtOAc
4. dry with materialdried over Na2SO4
5. customevaporated in vacuum
6. customto afford the crude product (0.45 g, yield: 82%)
7. stirringThe solution was stirred at room temperature for 4 hours
8. customquenched with ice water
9. extractionExtraction
10. customwith EtOAc and evaporation of the
11. customorganics gave the crude product
12. customIt was purified by preparative TLC