1.1
Reagents:
Triethylamine
,
1-Hydroxybenzotriazole
,
1-Ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride
Solvents:
Dimethylformamide
;
0 °C; 18 h, 0 °C → rt
1.2
Solvents:
Water