1.1
Reagents:
Dicyclohexylcarbodiimide
1.2
Reagents:
Piperidine
Solvents:
Dimethylformamide
;
2 h, rt
1.3
Reagents:
1-Hydroxybenzotriazole
,
Diisopropylethylamine
,
1-[Bis(dimethylamino)methylene]-1H-benzotriazolium hexafluorophosphate(1-) 3-oxi…
1.4
Reagents:
Piperidine
Solvents:
Dimethylformamide
;
2 h, rt
1.5
Reagents:
Triethylamine
Solvents:
Dimethylformamide
1.6
Reagents:
Trifluoroacetic acid

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