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Acetic Acid → HCID 90409700, compound

HRID 589115
Notes
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Reaction equation

HRID 589115 reaction equation
[CH3:1][C:2]1[C:6]([C:7]2[C:16]3[O:15][CH2:14][C@H:13]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=4)[N:12]4[C:23](=[O:25])[NH:24][C:10]([C:11]=34)=[C:9]([CH:26]=O)[CH:8]=2)=[C:5]([CH3:28])[O:4][N:3]=1.[CH3:29][O:30][C:31]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[CH:33][C:32]=1[CH2:39][NH2:40].C(O)(=O)C.C([BH3-])#N.[Na+]>C(O)C>[CH3:29][O:30][C:31]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[CH:33][C:32]=1[CH2:39][NH:40][CH2:26][C:9]1[CH:8]=[C:7]([C:6]2[C:2]([CH3:1])=[N:3][O:4][C:5]=2[CH3:28])[C:16]2[O:15][CH2:14][C@H:13]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=3)[N:12]3[C:23](=[O:25])[NH:24][C:10]=1[C:11]=23
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5972502,4-DimethoxybenzylamineHCID 5003444Sodium cyanoborohydrideHCID 90409434HCID 90409434, compound

Product 1

HCID 90409700HCID 90409700, compoundYield 114.2%

Reagents, catalysts & solvents 1

HCID 702
Ethanol
Solvent

Conditions

Temperature
60 °C

Procedure

A solution (4S)-7-(3,5-dimethylisoxazol-4-yl)-2-oxo-4-pyridin-2-yl-1,2,4,5-tetrahydroimidazo[1,5,4-de][1,4]benzoxazine-9-carbaldehyde (250 mg, 0.664 mmol) in ethanol (12.5 mL) was treated with 1-(2,4-dimethoxyphenyl)methanamine [Aldrich #: 432725](150 μL, 0.996 mmol) and acetic acid (20.0 μL, 0.352 mmol) and heated at 60° C. for 1 h. The reaction mixture was cooled to room temperature, treated with sodium cyanoborohydride (210 mg, 3.3 mmol) and stirred at room temperature for 3 h. The reaction mixture was then quenched with acetic acid (1 mL) and diluted with ethyl acetate. The organic layer was washed with water and brine, dried over magnesium sulfate, filtered, and concentrated to give the desired product (0.40 g, 97%) as a single enantiomer which was used without further purification. LCMS calculated for C29H30N5O5 (M+H)+: m/z=528.2. found: 528.0.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. customThe reaction mixture was then quenched with acetic acid (1 mL)
  3. additiondiluted with ethyl acetate
  4. washThe organic layer was washed with water and brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-c90557d9e5554e7dab48ff0708db7f40
Source dataset
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09227985B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes