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Diisopropylethylamine → 3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-((1S)-2-{[tert-butyl(dimethyl)silyl]oxy}-1-methylethoxy)-N-(3-methyl-1,2,4-thiadiazol-5-yl)benzamide

HRID 20583
Notes
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Reaction equation

HRID 20583 reaction equation
CCN(C(C)C)C(C)C.[N:10]1([C:14]([C:16]2[CH:43]=[CH:42][C:19]([O:20][C:21]3[CH:22]=[C:23]([CH:27]=[C:28]([O:30][C@@H:31]([CH3:41])[CH2:32][O:33][Si:34]([C:37]([CH3:40])([CH3:39])[CH3:38])([CH3:36])[CH3:35])[CH:29]=3)[C:24](O)=[O:25])=[CH:18][CH:17]=2)=[O:15])[CH2:13][CH2:12][CH2:11]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:68][C:69]1[S:73][N:72]=[C:71]([CH3:74])[N:70]=1>CN(C=O)C.O>[N:10]1([C:14]([C:16]2[CH:43]=[CH:42][C:19]([O:20][C:21]3[CH:22]=[C:23]([CH:27]=[C:28]([O:30][C@@H:31]([CH3:41])[CH2:32][O:33][Si:34]([C:37]([CH3:40])([CH3:38])[CH3:39])([CH3:35])[CH3:36])[CH:29]=3)[C:24]([NH:68][C:69]3[S:73][N:72]=[C:71]([CH3:74])[N:70]=3)=[O:25])=[CH:18][CH:17]=2)=[O:15])[CH2:13][CH2:12][CH2:11]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 3506395-Amino-3-methyl-1,2,4-thiadiazoleHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 593468963-[4-(Azetidin-1-ylcarbonyl)phenoxy]-5-((1S)-2-{[tert-butyl(dimethyl)silyl]oxy}-1-methylethoxy)benzoic acid

Product 1

HCID 59346931
3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-((1S)-2-{[tert-butyl(dimethyl)silyl]oxy}-1-methylethoxy)-N-(3-methyl-1,2,4-thiadiazol-5-yl)benzamide
Yield 99.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (0.5 mL, 3.0 mmol) was added to a suspension of 3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-((1S)-2-{[tert-butyl(dimethyl)silyl]oxy}-1-methylethoxy)benzoic acid (485 mg, 1.0 mmol), HATU (4951 g, 1.3 mmol) and 5-amino-3-methyl-1,2,4 thiadiazole (345 mg, 3.0 mmol) in DMF (6 mL). The resulting mixture was stirred at ambient temperature for 16 hours, water (90 mL) was added and the mixture extracted with ethyl acetate. The extracts were combined, washed with brine, dried (MgSO4), filtered and evaporated in vacuo to give the crude product which was chromatographed on silica, eluting with 75% ethyl acetate in isohexane, to give the desired compound (580 mg).

Workup

  1. extractionthe mixture extracted with ethyl acetate
  2. washwashed with brine
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customto give the crude product which
  7. customwas chromatographed on silica
  8. washeluting with 75% ethyl acetate in isohexane

Sources & evidence

ORD record
ord-19bd4ba69f6a4026bf11e1fb4a86f5a9
Source dataset
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07745475B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes