Reaction SMILES: C(O)(C(F)(F)F)=O.[CH3:8][O:9][C:10]([NH:12][C@@H:13]([CH:59]1[CH2:64][CH2:63][O:62][CH2:61][CH2:60]1)[C:14]([N:16]1[C@H:21]([C:22]2[NH:23][C:24]([C:27]3[CH:28]=[C:29]4[C:34](=[CH:35][CH:36]=3)[CH:33]=[C:32]([C:37]3[CH:38]=[CH:39][C:40]5[N:44]=[C:43]([C@@H:45]6[CH2:50][C@@H:49]7[C@@H:47]([CH2:48]7)[N:46]6C(OC(C)(C)C)=O)[NH:42][C:41]=5[CH:58]=3)[CH:31]=[CH:30]4)=[CH:25][N:26]=2)[CH2:20][C@@H:19]2[C@H:17]1[CH2:18]2)=[O:15])=[O:11]>C(Cl)Cl>[C@@H:47]12[CH2:48][C@@H:49]1[CH2:50][C@@H:45]([C:43]1[NH:42][C:41]3[CH:58]=[C:37]([C:32]4[CH:33]=[C:34]5[C:29](=[CH:30][CH:31]=4)[CH:28]=[C:27]([C:24]4[NH:23][C:22]([C@@H:21]6[CH2:20][C@@H:19]7[C@@H:17]([CH2:18]7)[N:16]6[C:14](=[O:15])[C@@H:13]([NH:12][C:10](=[O:11])[O:9][CH3:8])[CH:59]6[CH2:64][CH2:63][O:62][CH2:61][CH2:60]6)=[N:26][CH:25]=4)[CH:36]=[CH:35]5)[CH:38]=[CH:39][C:40]=3[N:44]=1)[NH:46]2
Reactant: COC(=O)N[C@H](C(=O)N1[C@@H]2C[C@@H]2C[C@H]1c1ncc(-c2ccc3cc(-c4ccc5nc([C@@H]6C[C@H]7C[C@H]7N6C(=O)OC(C)(C)C)[nH]c5c4)ccc3c2)[nH]1)C1CCOCC1
Solvent: ClCCl
Solvent: O=C(O)C(F)(F)F
Product: COC(=O)N[C@H](C(=O)N1[C@@H]2C[C@@H]2C[C@H]1c1ncc(-c2ccc3cc(-c4ccc5nc([C@@H]6C[C@H]7C[C@H]7N6)[nH]c5c4)ccc3c2)[nH]1)C1CCOCC1
Temperature: 25 °C
Reaction time: 2 h
Yield: 76.7 %

Procedure:
TFA (2 mL, 26.0 mmol) was added to a solution of a TFA salt of (1R,3S,5R)-tert-butyl 3-(6-(6-(2-((1R,3S,5R)-2-((S)-2-(methoxycarbonylamino)-2-(tetrahydro-2H-pyran-4-yl)acetyl)-2-azabicyclo[3.1.0]hexan-3-yl)-1H-imidazol-5-yl)naphthalen-2-yl)-1H-benzo[d]imidazol-2-yl)-2-azabicyclo[3.1.0]hexane-2-carboxylate (150 mg) in DCM and the mixture was stirred for 2 h at rt. The volatiles were removed under vacuum and the residue was taken in MeOH (15 mL), filtered through a Strata XC MCX cartridge (1 g) and washed with methanol. The compound was release from the cartridge by washing the column with a solution of 2M of ammonia/methanol (20 mL) and concentrated to give methyl (S)-2-((1R,3S,5R)-3-(5-(6-(2-((1R,3S,5R)-2-azabicyclo[3.1.0]hexan-3-yl)-1H-benzo[d]imidazol-6-yl)naphthalen-2-yl)-1H-imidazol-2-yl)-2-azabicyclo[3.1.0]hexan-2-yl)-2-oxo-1-(tetrahydro-2H-pyran-4-yl)ethylcarbamate (100 mg, 0.149 mmol) as white solid. LC-MS retention time 1.772 min; m/z 670.36 (M−H+). LC data was recorded on a Shimadzu LC-10AS liquid chromatograph equipped with a Waters Sunfire C18 4.6×30 mm column using a SPD-10AV UV-Vis detector at a detector wave length of 220 nM. The elution conditions employed a flow rate of 4 mL/min, a gradient of 100% Solvent A/0% Solvent B to 0% Solvent A/100% Solvent B, a gradient time of 2 min, a hold time of 1 min, and an analysis time of 3 min where Solvent A was 10% methanol/90% water/10 mM ammonium acetate and solvent and Solvent B was 10% water/90% methanol/10 mM ammonium acetate and solvent. MS data was determined using a MICROMASS® Platform for LC in electrospray mode. 1H NMR (TFA salt, 500 MHz, MeOD) δ ppm 8.28 (s, 1H), 8.24 (s, 1H), 8.13 (d, J=8.9 Hz, 1H), 8.05-8.10 (m, 1H), 8.03 (s, 1H), 7.96-8.00 (m, 2H), 7.84 (dd, J=8.7, 1.7 Hz, 1H), 7.75-7.82 (m, 2H), 5.16 (dd, J=9.2, 7.3 Hz, 1H), 4.84-4.88 (partially shaded by MeOD, m, 1H), 4.62 (d, J=7.6 Hz, 1H), 3.91-4.01 (m, 2H), 3.84-3.89 (m, 1H), 3.66-3.76 (m, 3H), 3.51-3.56 (m, 1H), 3.35-3.46 (m, 2H), 2.82 (dd, J=12.8, 7.3 Hz, 1H), 2.73 (dd, J=13.7, 9.2 Hz, 1H), 2.61 (td, J=12.0, 4.7 Hz, 1H), 2.53 (ddd, J=13.8, 6.8, 6.6 Hz, 1H), 2.06-2.16 (m, 3H), 1.58-1.64 (m, 1H), 1.44-1.57 (m, 3H), 1.23-1.30 (m, 1H), 1.08-1.16 (m, 1H), 1.05 (q, J=7.8 Hz, 1H), 0.88-0.93 (m, 1H).