Hydrochloric Acid → tert-Butyl 4-(5-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)pyridin-2-yl)piperidine-1-carboxylate

HRID 1779007Notes

Reaction equation

HRID 1779007 reaction equation
C1C=CC2N(O)N=[N:7]C=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.CCN(C(C)C)C(C)C.[C:33]([O:37][C:38]([N:40]1[CH2:45][CH2:44][CH:43]([C:46]2[N:51]=[CH:50][C:49]([NH:52][C:53]3[N:58]=[C:57]([CH2:59][CH2:60][C:61]4[CH:66]=[CH:65][CH:64]=[CH:63][C:62]=4[CH2:67][C:68]([OH:70])=O)[C:56]([C:71]([F:74])([F:73])[F:72])=[CH:55][N:54]=3)=[CH:48][CH:47]=2)[CH2:42][CH2:41]1)=[O:39])([CH3:36])([CH3:35])[CH3:34].C(=O)([O-])[O-].[NH4+].[NH4+]>CN(C=O)C>[NH2:7][C:68](=[O:70])[CH2:67][C:62]1[CH:63]=[CH:64][CH:65]=[CH:66][C:61]=1[CH2:60][CH2:59][C:57]1[C:56]([C:71]([F:74])([F:72])[F:73])=[CH:55][N:54]=[C:53]([NH:52][C:49]2[CH:48]=[CH:47][C:46]([CH:43]3[CH2:44][CH2:45][N:40]([C:38]([O:37][C:33]([CH3:34])([CH3:36])[CH3:35])=[O:39])[CH2:41][CH2:42]3)=[N:51][CH:50]=2)[N:58]=1

Participants

8

Reactant 6

HCID 313Hydrochloric AcidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 517111Ammonium CarbonateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 867126622-(2-(2-(2-((6-(1-(tert-Butoxycarbonyl)piperidin-4-yl)pyridin-3-yl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)ethyl)phenyl)acetic acid

Product 1

HCID 86712663tert-Butyl 4-(5-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)pyridin-2-yl)piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

HOBt (50 mg, 0.37 mmol), EDCl.HCl (78 mg, 0.41 mmol) and DIPEA (0.11 mL, 0.63 mmol) were added to a stirred solution of 2-(2-(2-(2-((6-(1-(tert-butoxycarbonyl)piperidin-4-yl)pyridin-3-yl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)ethyl)phenyl)acetic acid (A46) (74 mg, 0.13 mmol) in dry DMF (5 mL) under an atmosphere of nitrogen. After 10 minutes ammonium carbonate (121 mg, 1.26 mmol) was added in one portion and the resulting mixture was stirred for 18 hours at room temperature. The volatiles were removed in vacuo and the residue was partitioned between EtOAc (10 mL) and saturated aqueous NaHCO3 (10 mL). The aqueous layer was extracted with EtOAc (2×10 mL) then the combined organic layers were washed with brine (10 mL) and dried over Na2SO4. The volatiles were removed in vacuo and the residue purified by silica gel column chromatography (Biotage Isolera, 40 g SiO2 cartridges, 0-100% EtOAc in petroleum benzine 40-60° C. followed by 0-25% MeOH in EtOAc) to give the title compound A47 as clear oil (58 mg, 78%); 1H NMR (400 MHz, CDCl3) δ 8.83 (s, 1H), 8.54 (s, 1H), 7.97 (s, 1H), 7.80 (s, 1H), 7.30-7.22 (m, 4H), 7.17 (d, J=8.5 Hz, 1H), 5.78 (s, 1H), 5.62 (s, 1H), 4.25 (s, 2H), 3.74 (s, 2H), 3.11 (s, 4H), 2.83 (m, 3H), 1.92 (d, J=12.3 Hz, 2H), 1.79-1.60 (m, 2H, peak obscured), 1.48 (s, 9H). LCMS-A: rt 5.549 min; m/z 585 [M+H]+.

Workup

  1. customThe volatiles were removed in vacuo
  2. customthe residue was partitioned between EtOAc (10 mL) and saturated aqueous NaHCO3 (10 mL)
  3. extractionThe aqueous layer was extracted with EtOAc (2×10 mL)
  4. washthe combined organic layers were washed with brine (10 mL)
  5. dry with materialdried over Na2SO4
  6. customThe volatiles were removed in vacuo
  7. customthe residue purified by silica gel column chromatography (Biotage Isolera, 40 g SiO2 cartridges, 0-100% EtOAc in petroleum benzine 40-60° C. followed by 0-25% MeOH in EtOAc)

Sources & evidence

ORD record
ord-ba203d40843143feba38cdf2741f7d39
Source dataset
uspto-grants-2016_02
Patent number
US09266864B2

Reaction notes

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