O[N:2]=[C:3]([CH2:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[CH2:4][CH2:5][C:6]([OH:8])=[O:7]>C(O)C.[Pd]>[NH2:2][CH:3]([CH2:9][CH2:10][C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1)[CH2:4][CH2:5][C:6]([OH:8])=[O:7]A solution of the oximes 100 (2.7 g 12.2 mmol) in ethanol (40 mL) was hydrogenated over 10% Pd—C at 40 psi and 50° C. for 3 days. The catalyst was filtered off and the solvent was evaporated. The residue was partitioned between ether and 0.1 M HCl and the aqueous layer was lyophilized giving 101 as a white powder (130 mg, 5%).
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