Trifluoroacetic acid → HCID 178511744, compound
Reaction equation
C(OC(=O)[NH:7][C@H:8]1[CH2:11][C@@H:10]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:9]1)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH2:13]([O:12][C@@H:10]1[CH2:11][C@H:8]([NH2:7])[CH2:9]1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of (cis-3-benzyloxycyclobutyl)carbamic acid tert-butyl ester (2.40 g, 8.67 mmol) in DCM (20 mL) was added TFA (4 mL) and the mixture stirred at RT for 3 h. The volatiles were removed in vacuo and the resulting residue dissolved in DCM and loaded onto SCX-2 (20 g). The cartridge was washed with DCM then MeOH then 2M NH3 in MeOH solution. The relevant fractions were concentrated in vacuo to afford the title compound as yellow oil (1.48 g, 95%). 1H NMR (CDCl3, 400 MHz): δ 7.36-7.30 (5H, m), 4.40 (2H, s), 3.73-3.61 (1H, m), 3.06-2.93 (1H, m), 2.72-2.58 (2H, m), 1.74-1.61 (2H, m), 1.47 (2H, s, br).