N,N-Diethylethanamine trihydrofluoride → biphenyl-2-ylcarbamic acid 1-[2-(4-{[(R)-2-(3-formylamino-4-hydroxyphenyl)-2-hydroxyethylamino]methyl}-2,5-dimethylphenyl-carbamoyl)ethyl]piperidin-4-yl ester

HRID 2113264Notes

Reaction equation

HRID 2113264 reaction equation
[Si]([O:8][C@H:9]([C:48]1[CH:53]=[CH:52][C:51]([OH:54])=[C:50]([NH:55][CH:56]=[O:57])[CH:49]=1)[CH2:10][NH:11][CH2:12][C:13]1[C:18]([CH3:19])=[CH:17][C:16]([NH:20][C:21]([CH2:23][CH2:24][N:25]2[CH2:30][CH2:29][CH:28]([O:31][C:32](=[O:46])[NH:33][C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=3[C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=3)[CH2:27][CH2:26]2)=[O:22])=[C:15]([CH3:47])[CH:14]=1)(C(C)(C)C)(C)C.F.F.F.C(N(CC)CC)C>ClCCl>[CH:56]([NH:55][C:50]1[CH:49]=[C:48]([C@@H:9]([OH:8])[CH2:10][NH:11][CH2:12][C:13]2[C:18]([CH3:19])=[CH:17][C:16]([NH:20][C:21]([CH2:23][CH2:24][N:25]3[CH2:30][CH2:29][CH:28]([O:31][C:32](=[O:46])[NH:33][C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=4[C:40]4[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=4)[CH2:27][CH2:26]3)=[O:22])=[C:15]([CH3:47])[CH:14]=2)[CH:53]=[CH:52][C:51]=1[OH:54])=[O:57]

Participants

4

Reactant 2

HCID 175505N,N-Diethylethanamine trihydrofluorideHCID 86615941biphenyl-2-ylcarbamic acid 1-[2-(4-{[(R)-2-(tert-butyldimethylsilanyloxy)-2-(3-formylamino-4-hydroxyphenyl)ethylamino]-methyl}-2,5-dimethylphenylcarbamoyl)ethyl]piperidin-4-yl ester

Product 1

HCID 16755732biphenyl-2-ylcarbamic acid 1-[2-(4-{[(R)-2-(3-formylamino-4-hydroxyphenyl)-2-hydroxyethylamino]methyl}-2,5-dimethylphenyl-carbamoyl)ethyl]piperidin-4-yl ester

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a suspension of biphenyl-2-ylcarbamic acid 1-[2-(4-{[(R)-2-(tert-butyldimethylsilanyloxy)-2-(3-formylamino-4-hydroxyphenyl)ethylamino]methyl}-2,5-dimethylphenylcarbamoyl)-ethyl]piperidin-4-yl ester (238 mg, 0.30 mmol) in dichloromethane (3.0 mL) was added triethylamine trihydrofluoride (147 μL, 0.90 mmol). This mixture was stirred at room temperature overnight and then the mixture was concentrated under reduced pressure. The residue was purified by prep-RP-HPLC (gradient: 2 to 50% acetonitrile in water with 0.05% TFA). The appropriate fractions were collected and combined and lyophilized to give biphenyl-2-ylcarbamic acid 1-[2-(4-{[(R)-2-(3-formylamino-4-hydroxyphenyl)-2-hydroxyethylamino]methyl}-2,5-dimethylphenylcarbamoyl)ethyl]piperidin-4-yl ester as the ditrifluoroacetate salt (50 mg, 97% purity). LPLC (2-90) Rt=2.76; [M+H+] found 680.8.

Workup

  1. concentrationthe mixture was concentrated under reduced pressure
  2. customThe residue was purified by prep-RP-HPLC (gradient: 2 to 50% acetonitrile in water with 0.05% TFA)
  3. customThe appropriate fractions were collected

Sources & evidence

ORD record
ord-7191808cf09a4752944d49da63f347d4
Source dataset
uspto-grants-2009_04
Patent number
US07524965B2

Reaction notes

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