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 2246509Notes

Reaction equation

HRID 2246509 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-372c938e306d4f7b95dd6369f7a1762b
Source dataset
uspto-grants-2010_03
Patent number
US07687521B2

Reaction notes

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