1,1'-Carbonyldiimidazole → (R)-3-[3,5-Dichloro-4'-(4-trifluoromethyl-piperidine-1-carbonyl)-biphenyl-4-ylmethyl]-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-2-one

HRID 1692085Notes

Reaction equation

HRID 1692085 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:33]2[CH:38]=[CH:37][C:36]([C:39](O)=[O:40])=[CH:35][CH:34]=2)[CH:5]=[C:6]([Cl:32])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([N:14]2[CH2:19][CH2:18][CH:17]([O:20][Si:21]([CH:28]([CH3:30])[CH3:29])([CH:25]([CH3:27])[CH3:26])[CH:22]([CH3:24])[CH3:23])[CH2:16][CH2:15]2)[C:10]1=[O:31].C(N1C=CN=C1)(N1C=CN=C1)=O.Cl.[F:55][C:56]([F:64])([F:63])[CH:57]1[CH2:62][CH2:61][NH:60][CH2:59][CH2:58]1.C(N(C(C)C)CC)(C)C>C(Cl)Cl.C(OCC)(=O)C>[Cl:32][C:6]1[CH:5]=[C:4]([C:33]2[CH:34]=[CH:35][C:36]([C:39]([N:60]3[CH2:61][CH2:62][CH:57]([C:56]([F:64])([F:63])[F:55])[CH2:58][CH2:59]3)=[O:40])=[CH:37][CH:38]=2)[CH:3]=[C:2]([Cl:1])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([N:14]2[CH2:19][CH2:18][CH:17]([O:20][Si:21]([CH:28]([CH3:29])[CH3:30])([CH:22]([CH3:24])[CH3:23])[CH:25]([CH3:27])[CH3:26])[CH2:16][CH2:15]2)[C:10]1=[O:31]

Participants

7

Reactant 4

HCID 682631,1'-CarbonyldiimidazoleHCID 81531DiisopropylethylamineHCID 162181604-(Trifluoromethyl)piperidine hydrochlorideHCID 66904943(R)-3',5'-Dichloro-4'-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic Acid

Product 1

HCID 66904908(R)-3-[3,5-Dichloro-4'-(4-trifluoromethyl-piperidine-1-carbonyl)-biphenyl-4-ylmethyl]-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-2-oneYield 84%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

Treat a solution of (R)-3′,5′-dichloro-4′-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid (0.337 g, 0.545 mmol) in CH2Cl2 (20 mL) with 1,1′-carbonyldiimidazole (0.177 g, 1.09 mmol) and stir for 45 minutes at room temperature. Treat the reaction with 4-trifluoromethylpiperidine hydrochloride (0.155 g, 0.818 mmol) and diisopropylethylamine (0.106 g, 0.818 mmol) and stir for 12 hours at room temperature. Load the mixture on a silica gel column, flash with 25% to 50% ethyl acetate in hexanes to afford 0.34 g (84%) of the title compound. MS (m/z): 754 (M+).

Workup

  1. additionTreat
  2. stirringstir for 12 hours at room temperature

Sources & evidence

ORD record
ord-79b0ffcd751742018c5d996d73231c6e
Source dataset
uspto-grants-2012_04
Patent number
US08153807B2

Reaction notes

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