Triethylamine → 2-Methylpentane

HRID 1689302Notes

Reaction equation

HRID 1689302 reaction equation
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[C:25]([C:29]1[S:30][CH:31]=[C:32]([C:34]([OH:36])=O)[N:33]=1)([CH3:28])([CH3:27])[CH3:26].[Si:37]([O:44][CH2:45][CH2:46][C:47]1[CH:48]=[C:49]([CH2:52][N:53]2[CH2:63][CH2:62][C:56]3([O:61][CH2:60][CH2:59][NH:58][CH2:57]3)[CH2:55][CH2:54]2)[S:50][CH:51]=1)([C:40]([CH3:43])([CH3:42])[CH3:41])([CH3:39])[CH3:38].C(N(CC)CC)C>CN(C=O)C>[CH3:52][CH2:49][CH2:48][CH:47]([CH3:51])[CH3:46].[Si:37]([O:44][CH2:45][CH2:46][C:47]1[CH:48]=[C:49]([CH2:52][N:53]2[CH2:63][CH2:62][C:56]3([O:61][CH2:60][CH2:59][N:58]([C:34]([C:32]4[N:33]=[C:29]([C:25]([CH3:26])([CH3:27])[CH3:28])[S:30][CH:31]=4)=[O:36])[CH2:57]3)[CH2:55][CH2:54]2)[S:50][CH:51]=1)([C:40]([CH3:41])([CH3:42])[CH3:43])([CH3:39])[CH3:38]

Participants

7

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 288755552-Tert-butyl-1,3-thiazole-4-carboxylic acidHCID 579891139-((4-(2-(tert-Butyldimethylsilyloxy)ethyl)thiophen-2-yl)methyl)-1-oxa-4,9-diazaspiro[5.5]undecane

Product 2

HCID 78922-MethylpentaneHCID 57989351(9-((4-(2-(Tert-butyldimethylsilyloxy)ethyl)thiophen-2-yl)methyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-tert-butylthiazol-4-yl)methanone

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

HATU (0.306 g) was added to stirred solution of 2-tert-butylthiazole-4-carboxylic acid (0.16 g), 9-((4-(2-(tert-butyldimethylsilyloxy)ethyl)thiophen-2-yl)methyl)-1-oxa-4,9-diazaspiro[5.5]undecane (example 43, step b) (0.300 g) and triethylamine (0.41 mL) in DMF (3 mL). After 1 h, the reaction mixture was partitioned between water and ethyl acetate. The ethyl acetate layer was washed twice with water and brine, dried over magnesium sulphate, filtered and evaporated in vacuo. Purification by silica gel chromatography eluting with ethyl acetate:isohexane:triethylamine, 12:90:10 gave the subtitled compound as a gum. Yield 0.3 g.

Workup

  1. customthe reaction mixture was partitioned between water and ethyl acetate
  2. washThe ethyl acetate layer was washed twice with water and brine
  3. dry with materialdried over magnesium sulphate
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customPurification by silica gel chromatography
  7. washeluting with ethyl acetate

Sources & evidence

ORD record
ord-c229df6f9157479f9a4c0a52443dfe5f
Source dataset
uspto-grants-2012_04
Patent number
US08148373B2

Reaction notes

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