1.1
Solvents:
Dichloromethane
,
Dimethylacetamide
;
0 °C; 0 °C → rt; 2 h, rt; 2 h, rt
2.1
Solvents:
Dimethylformamide
,
Dichloromethane
;
rt
2.2
Reagents:
Diisopropylethylamine
Solvents:
Dichloromethane
;
rt; 18 h, rt

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