[C:1]([C:3]1[CH:4]=[C:5]([C:9]2[O:10][C:11]3[C:12]([N:17]=2)=[N:13][CH:14]=[CH:15][CH:16]=3)[CH:6]=[CH:7][CH:8]=1)#[N:2]>O=[Pt]=O.C(O)(=O)C>[NH2:2][CH2:1][C:3]1[CH:4]=[C:5]([C:9]2[O:10][C:11]3[C:12]([N:17]=2)=[N:13][CH:14]=[CH:15][CH:16]=3)[CH:6]=[CH:7][CH:8]=1A mixture of 2-(3-cyanophenyl)oxazolo[4,5-b]-pyridine (2.2 g., 0.01 m.), 200 ml. of glacial acetic acid and 1.0 g. of PtO2 catalyst is reacted in a 40 p.s.i. hydrogen atmosphere at room temperature until the theoretical amount of hydrogen has been absorbed. The mixture is filtered, the acetic acid removed in vacuo to yield 2-[3-(aminomethyl)phenyl]oxazolo[4,5-b]pyridine.
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