Water → HCID 178502502, compound

HRID 2176467Notes

Reaction equation

HRID 2176467 reaction equation
[CH3:1][O:2][C:3](=[O:38])[NH:4][C@H:5]([C:9]([N:11]1[C@H:15]([C:16]2[NH:17][CH:18]=[C:19]([C:21]3[CH:26]=[CH:25][C:24](B4OC(C)(C)C(C)(C)O4)=[CH:23][CH:22]=3)[N:20]=2)[CH2:14][Si:13]([CH3:37])([CH3:36])[CH2:12]1)=[O:10])[CH:6]([CH3:8])[CH3:7].[C:39]([O:43][C:44]([N:46]1[CH2:51][CH2:50][N:49]([C:52]2[CH:57]=[CH:56][C:55]([C:58](=[O:73])[NH:59][C:60]3[CH:65]=[C:64]([O:66][C:67]([F:70])([F:69])[F:68])[C:63](Br)=[CH:62][C:61]=3[Cl:72])=[CH:54][N:53]=2)[C@H:48]([CH3:74])[CH2:47]1)=[O:45])([CH3:42])([CH3:41])[CH3:40].O.C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1>[C:39]([O:43][C:44]([N:46]1[CH2:51][CH2:50][N:49]([C:52]2[CH:57]=[CH:56][C:55]([C:58](=[O:73])[NH:59][C:60]3[C:61]([Cl:72])=[CH:62][C:63]([C:24]4[CH:23]=[CH:22][C:21]([C:19]5[N:20]=[C:16]([C@H:15]6[N:11]([C:9](=[O:10])[C@@H:5]([NH:4][C:3]([O:2][CH3:1])=[O:38])[CH:6]([CH3:7])[CH3:8])[CH2:12][Si:13]([CH3:37])([CH3:36])[CH2:14]6)[NH:17][CH:18]=5)=[CH:26][CH:25]=4)=[C:64]([O:66][C:67]([F:70])([F:69])[F:68])[CH:65]=3)=[CH:54][N:53]=2)[C@H:48]([CH3:74])[CH2:47]1)=[O:45])([CH3:42])([CH3:40])[CH3:41]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 67494940(R)-4-[5-(4-bromo-2-chloro-5-trifluoromethoxy-phenylcarbamoyl)-pyridin-2-yl]-3-methyl-piperazine-1-carboxylic acid tert-butyl esterHCID 178502500HCID 178502500, compound

Product 1

HCID 178502502HCID 178502502, compoundYield 26%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of [[(5)-1-((R)-3,3-dimethyl-5-{4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-1H-imidazol-2-yl}-[1,3]azasilolidine-1-carbonyl)-2-methyl-propyl]-carbamic acid methylester (51.6 mg, 0.096 mmol; Preparation 11) and (R)-4-[5-(4-bromo-2-chloro-5-trifluoromethoxy-phenylcarbamoyl)-pyridin-2-yl]-3-methyl-piperazine-1-carboxylic acid tert-butyl ester (56.7 mg, 0.096 mmol) dissolved in toluene (0.61 mL) and water (0.24 mL) was added potassium carbonate (66.0 mg, 0.48 mmol). The reaction mixture was sparged under nitrogen for 15 min and Pd(dppf)Cl2CH2Cl2 (7.02 mg, 0.009 mmol) was added. The reaction mixture was sparged with nitrogen and heated to 90° C. overnight, cooled to RT, diluted with EtOAc, and washed with water and brine to produce a dark colored oil. The residue was purified by silica gel chromatography (12 g silica, 0% to 100% EtOAc/hexane) to produce the title intermediate as a yellowish solid (23 mg; 26% yield) (m/z): [M+H]+ calcd for C44H54ClF3N8O7Si 927.35 found 927.4.

Workup

  1. customThe reaction mixture was sparged under nitrogen for 15 min
  2. customThe reaction mixture was sparged with nitrogen
  3. temperaturecooled to RT
  4. additiondiluted with EtOAc
  5. washwashed with water and brine
  6. customto produce a dark colored oil
  7. customThe residue was purified by silica gel chromatography (12 g silica, 0% to 100% EtOAc/hexane)

Sources & evidence

ORD record
ord-ba6e51dce8bc41b3a900df3ff7278c73
Source dataset
uspto-grants-2015_06
Patent number
US09066944B2

Reaction notes

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