1.1
Reagents:
Hydrogen
Catalysts:
Palladium
Solvents:
Methanol
;
2.5 h, 20 °C
1.2
Reagents:
Trifluoroacetic acid
;
30 min, 20 °C
1.3
Reagents:
Hydrochloric acid
Solvents:
Isopropanol

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