Diisopropylethylamine → HCID 58694585, compound

HRID 1992037Notes

Reaction equation

HRID 1992037 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][C:17]([NH2:20])=[C:16]([C:21]3[CH2:26][CH2:25][C:24]([CH3:28])([CH3:27])[CH2:23][CH:22]=3)[CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[K+].[C:30]([C:32]1[N:33]=[C:34]([C:45]([O-])=[O:46])[N:35]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[CH:36]=1)#[N:31].C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:45]([C:34]3[N:35]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[CH:36]=[C:32]([C:30]#[N:31])[N:33]=3)=[O:46])=[C:16]([C:21]3[CH2:26][CH2:25][C:24]([CH3:28])([CH3:27])[CH2:23][CH:22]=3)[CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 58694583HCID 58694583, compoundHCID 67188357potassium 4-cyano-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazole-2-carboxylate

Product 1

HCID 58694585HCID 58694585, compoundYield 84.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 89.0 mg (0.231 mmol) 4-[4-amino-3-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-piperidine-1-carboxylic acid tert-butyl ester (as prepared in the previous step) in 10 mL CH2Cl2 was treated with 77.8 mg (0.255 mmol) 4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylate potassium salt (as prepared in Example 1, step (d)), 162 mg (0.347 mmol) PyBrOP, and 121 μL (0.694 mmol) DIEA and stirred at RT for 2 h. The mixture was diluted with CH2Cl2 (20 mL) and washed with saturated NaHCO3 (1×15 mL) and water (1×15 mL). The organic layer was dried (MgSO4) and concentrated in vacuo. Silica gel chromatography of the residue on a Varian MegaBond Elut 50-gm column with 10-25% EtOAc-hexane afforded 124 mg (84%) of the title compound as an off-white solid: Mass spectrum (ESI, m/z): Calcd. for C31H44N5O4Si, 578.3 (M−C4H9+2H), found 578.0.

Workup

  1. washwashed with saturated NaHCO3 (1×15 mL) and water (1×15 mL)
  2. dry with materialThe organic layer was dried (MgSO4)
  3. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-68d556aee6954f1f9ece5716e3975bdd
Source dataset
uspto-grants-2010_01
Patent number
US07645755B2

Reaction notes

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