D-Tartaric acid → (R)-1-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)propan-2-amine (2S,3S)-2,3-dihydroxysuccinate

HRID 1772546Notes

Reaction equation

HRID 1772546 reaction equation
[F:1][C:2]([F:26])([F:25])[O:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH:14]=[N:13][C:12]([C:15]3[CH:20]=[CH:19][C:18]([CH2:21][CH:22]([NH2:24])[CH3:23])=[CH:17][CH:16]=3)=[N:11]2)=[CH:6][CH:5]=1.[OH:27][C@@H:28]([C@H:32]([OH:36])[C:33]([OH:35])=[O:34])[C:29]([OH:31])=[O:30]>CO>[OH:27][C@@H:28]([C@H:32]([OH:36])[C:33]([OH:35])=[O:34])[C:29]([OH:31])=[O:30].[F:26][C:2]([F:1])([F:25])[O:3][C:4]1[CH:5]=[CH:6][C:7]([N:10]2[CH:14]=[N:13][C:12]([C:15]3[CH:20]=[CH:19][C:18]([CH2:21][C@H:22]([NH2:24])[CH3:23])=[CH:17][CH:16]=3)=[N:11]2)=[CH:8][CH:9]=1

Participants

4

Reactant 2

HCID 439655D-Tartaric acidHCID 904118321-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)propan-2-amine

Product 1

HCID 131732840(R)-1-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)propan-2-amine (2S,3S)-2,3-dihydroxysuccinateYield 46%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
65 °C

Procedure

To 1-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)propan-2-amine (CB58) (0.60 g, 1.7 mmol) in methanol (10 mL) was added (2S,3S)-2,3-dihydroxysuccinic acid (0.25 g, 1.7 mmol). The resultant solid was filtered and air dried overnight: mp 182-185° C. The solid was redissolved in methanol (10 mL) and heated to reflux (65° C.). The solution was cooled to room temperature and let stand overnight. The white solid that formed was filtered and air-dried to give the title compound as a white solid (0.40 g, 46%): mp 191-194° C.; 1H NMR (400 MHz, CDOD3) d 9.16 (s, 1H), 8.15 (d, J=8.2 Hz, 2H), 8.02 (d, J=9.1 Hz, 2H), 7.50 (dd, J=9.2, 1.0 Hz, 2H), 7.41 (d, J=8.2 Hz, 2H), 4.40 (s, 2H), 3.59 (dt, J=8.1, 6.2 Hz, 1H), 3.07 (dd, J=13.6, 6.1 Hz, 1H), 2.88 (dd, J=13.6, 8.3 Hz, 1H), 1.29 (d, J=6.5 Hz, 3H) (OH and NH2 not observed).

Workup

  1. filtrationThe resultant solid was filtered
  2. customair dried overnight
  3. dissolutionThe solid was redissolved in methanol (10 mL)
  4. temperatureheated
  5. temperatureThe solution was cooled to room temperature
  6. customThe white solid that formed
  7. filtrationwas filtered
  8. customair-dried

Sources & evidence

ORD record
ord-e6293247c0f4418c91efbe497e07b3c7
Source dataset
uspto-grants-2016_02
Patent number
US09249133B2

Reaction notes

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