Triethylamine → HCID 69750555, compound

HRID 497476Notes

Reaction equation

HRID 497476 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C@@H:11]([NH2:14])[C@@H:10]([C:15]([N:17]2[CH2:22][CH2:21][CH2:20][C@@H:19]([CH2:23][C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=3)[CH2:18]2)=[O:16])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[C:38]([C:41]1[CH:42]=[C:43]([N:47]=[C:48]=[O:49])[CH:44]=[CH:45][CH:46]=1)(=[O:40])[CH3:39]>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C@@H:11]([NH:14][C:48]([NH:47][C:43]2[CH:44]=[CH:45][CH:46]=[C:41]([C:38](=[O:40])[CH3:39])[CH:42]=2)=[O:49])[C@@H:10]([C:15]([N:17]2[CH2:22][CH2:21][CH2:20][C@@H:19]([CH2:23][C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=3)[CH2:18]2)=[O:16])[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 3127181-(3-Isocyanatophenyl)ethan-1-oneHCID 69748549HCID 69748549, compound

Product 1

HCID 69750555HCID 69750555, compoundYield 57%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

In a dry flask (3S,4R)-4-amino-3-[(S)-3-(4-fluoro-benzyl)-piperidine-1-carbonyl]-piperidine-1-carboxylic acid t-butyl ester (43 mg, 0.10 mmol) was dissolved in tetrahydrofuran (2 mL) and then triethylamine (19 μL, 0.14 mmol) and 3-acetylphenylisocyanate (17 μL, 0.12 mmol) were added. After stirring for 18 hours, removed half of the reaction mixture for purification. The remainder of the reaction mixture was taken onto the next reaction without purification. The aliquot was purified by preparative reverse-phase HPLC (10-80% acetonitrile in water with 0.05% trifluoroacetic acid) to give a white amorphous solid (17 mg, 57%). 1H NMR (400 MHz, DMSO-d6, 120° C.), δ: 8.64 (s, 1H), 7.94 (m, 1H), 7.57 (d, J=8, 1H), 7.46 (d, J=8, 1H), 7.33 (t, J=8, 1H), 7.17 (m, 2H), 7.00 (t, J=9, 2H), 6.13 (d, J=8, 1H), 4.07 (m, 1H), 3.87 (m, 1H), 3.61 (m, 1H), 3.42 (dd, J=14, J′=4, 1H), 3.32 (m, 1H), 2.98 (m, 2H), 2.70 (m, 1H), 2.50 (m, 1H), 2.49 (s, 3H), 2.02 (m, 1H), 1.73 (m, 3H), 1.53 (m, 1H), 1.39 (s, 9H), 1.22 (m, 2H). HRMS (ESI), C32H42FN4O5 m+/z: calc.=581.3139, found=581.3149.

Workup

  1. customremoved half of the reaction mixture
  2. customfor purification
  3. customThe remainder of the reaction mixture was taken onto the next reaction without purification
  4. customThe aliquot was purified by preparative reverse-phase HPLC (10-80% acetonitrile in water with 0.05% trifluoroacetic acid)

Sources & evidence

ORD record
ord-111b88c68bb84f2ca8b043f381baa58a
Source dataset
uspto-grants-2005_09
Patent number
US06949546B2

Reaction notes

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