Triethylamine → (9-(2-Fluoro-3-(2-hydroxyethyl)benzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-(pentan-3-yl)thiazol-4-yl)methanone

HRID 1255313

Reaction equation

HRID 1255313 reaction equation
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[O:25]1[C:30]2([CH2:35][CH2:34][N:33]([CH2:36][C:37]3[C:38]([F:46])=[C:39]([CH2:43][CH2:44][OH:45])[CH:40]=[CH:41][CH:42]=3)[CH2:32][CH2:31]2)[CH2:29][NH:28][CH2:27][CH2:26]1.[CH3:47][CH2:48][CH:49]([C:52]1[S:53][CH:54]=[C:55]([C:57](O)=[O:58])[N:56]=1)[CH2:50][CH3:51].C(N(CC)CC)C>CN(C=O)C.[Cl-].[Na+].O.O>[F:46][C:38]1[C:39]([CH2:43][CH2:44][OH:45])=[CH:40][CH:41]=[CH:42][C:37]=1[CH2:36][N:33]1[CH2:34][CH2:35][C:30]2([O:25][CH2:26][CH2:27][N:28]([C:57]([C:55]3[N:56]=[C:52]([CH:49]([CH2:50][CH3:51])[CH2:48][CH3:47])[S:53][CH:54]=3)=[O:58])[CH2:29]2)[CH2:31][CH2:32]1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 579605932-(Pentan-3-yl)thiazole-4-carboxylic acidHCID 579891872-(3-(1-Oxa-4,9-diazaspiro[5.5]undecan-9-ylmethyl)-2-fluorophenyl)ethanol

Product 1

HCID 57989379(9-(2-Fluoro-3-(2-hydroxyethyl)benzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-(pentan-3-yl)thiazol-4-yl)methanone

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Procedure

HATU (0.35 g) was added to a colourless solution of 2-(3-(1-oxa-4,9-diazaspiro[5.5]undecan-9-ylmethyl)-2-fluorophenyl)ethanol [Example 9, step b] (0.364 g), 2-(pentan-3-yl)thiazole-4-carboxylic acid [Carboxylic Acid 3] (0.141 g) and triethylamine (0.30 mL) in DMF (10 mL), pre-cooled in ice-water. The resulting yellow mixture was stirred in ice-water for 1 hour, then at room temperature for 1 hour. The solution was poured into a mixture of water and brine and extracted twice with ethyl acetate. The combined organic extracts were washed three times with water, once with brine, then dried (MgSO4), filtered and concentrated onto flash silica in vacuo. The resulting powder was purified by flash chromatography on silica eluted with triethylamine:methanol:dichloromethane (1:2:97) to afford the subtitled compound. Yield 0.324 g.

Workup

  1. extractionextracted twice with ethyl acetate
  2. washThe combined organic extracts were washed three times with water
  3. dry with materialonce with brine, then dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated onto flash silica in vacuo
  6. customThe resulting powder was purified by flash chromatography on silica
  7. washeluted with triethylamine:methanol:dichloromethane (1:2:97)

Sources & evidence

ORD record
ord-76ad650e23894a92a500e7265ac17c60
Source dataset
uspto-grants-2013_06
Patent number
US08455483B2

Linked notes

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