Diisopropylethylamine → tert-butyl (2-(tetrahydro-2H-pyran-4-carboxamido)-4-(thiophen-2-yl)phenyl)carbamate

HRID 62668

Reaction equation

HRID 62668 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([C:8]2[S:9][CH:10]=[CH:11][CH:12]=2)[CH:5]=[CH:4][C:3]=1[NH:13][C:14](=[O:20])[O:15][C:16]([CH3:19])([CH3:18])[CH3:17].[O:21]1[CH2:26][CH2:25][CH:24]([C:27](O)=[O:28])[CH2:23][CH2:22]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C.O>[O:21]1[CH2:26][CH2:25][CH:24]([C:27]([NH:1][C:2]2[CH:7]=[C:6]([C:8]3[S:9][CH:10]=[CH:11][CH:12]=3)[CH:5]=[CH:4][C:3]=2[NH:13][C:14](=[O:20])[O:15][C:16]([CH3:17])([CH3:19])[CH3:18])=[O:28])[CH2:23][CH2:22]1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 219302Oxane-4-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57717474tert-Butyl (2-amino-4-(thiophen-2-yl)phenyl)carbamate

Product 1

HCID 71007312tert-butyl (2-(tetrahydro-2H-pyran-4-carboxamido)-4-(thiophen-2-yl)phenyl)carbamateYield 78.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A solution of tert-butyl (2-amino-4-(thiophen-2-yl)phenyl)carbamate (1.2 g, 4.13 mmol, 1.0 eq.), tetrahydro-2H-pyran-4-carboxylic acid (0.65 g, 4.96 mmol, 1.2 eq.), HATU (3.14 g, 8.27 mmol, 2.0 eq.) and Hünigs base (1.80 mL, 10.33 mmol, 2.5 eq.) in DMF (15 mL) was stirred for 18 h at room temperature. The reaction mixture was diluted with water. The solid was isolated by filtration and washed with hexanes to afford tert-butyl (2-(tetrahydro-2H-pyran-4-carboxamido)-4-(thiophen-2-yl)phenyl)carbamate (1.3 g, 78% yield).

Workup

  1. customThe solid was isolated by filtration
  2. washwashed with hexanes

Sources & evidence

ORD record
ord-cdc821ed66804ad7a4e90c57cac42816
Source dataset
uspto-grants-2016_09
Patent number
US09447030B2

Linked notes

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