Benzyl chloroformate → Ammonia

HRID 2116980Notes

Reaction equation

HRID 2116980 reaction equation
[CH3:1][N:2]([CH3:36])[C:3]1[CH:4]=[C:5]([CH:33]=[CH:34][CH:35]=1)[CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][NH:17][CH2:18][C@@H:19]([C:21]1[CH:32]=[CH:31][C:24]2[O:25][C:26]([CH3:30])([CH3:29])[O:27][CH2:28][C:23]=2[CH:22]=1)[OH:20].C(N(C(C)C)CC)(C)C.Cl[C:47]([O:49][CH2:50][C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=1)=[O:48].C(=O)(O)[O-].[Na+]>ClCCl>[NH3:2].[CH3:36][N:2]([CH3:1])[C:3]1[CH:4]=[C:5]([CH:33]=[CH:34][CH:35]=1)[CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][N:17]([CH2:18][C@@H:19]([C:21]1[CH:32]=[CH:31][C:24]2[O:25][C:26]([CH3:29])([CH3:30])[O:27][CH2:28][C:23]=2[CH:22]=1)[OH:20])[C:47](=[O:48])[O:49][CH2:50][C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=1

Participants

7

Reactant 4

HCID 10387Benzyl chloroformateHCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 66846385HCID 66846385, compound

Product 2

HCID 222AmmoniaHCID 66845304HCID 66845304, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of (1R)-2-{[6-(2-{[3-(dimethylamino)benzyl]oxy}ethoxy)hexyl]amino}-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol (200 mg) in dichloromethane (10 ml) was treated under nitrogen with diisopropylethylamine (0.09 ml) followed by benzyl chloroformate (0.099 ml) and the mixture was stirred at 20° for 4 h. Saturated sodium bicarbonate solution was added and the mixture extracted with dichloromethane. The extract was dried (Na2SO4) and the solvent evaporated in vacuo. The residue was purified by SPE (silica, 10 g). Elution with dichloromethane-ethanol—0.880 ammonia (250:8:1) gave the title compound (220 mg). LCMS RT=3.87 min.

Workup

  1. extractionthe mixture extracted with dichloromethane
  2. dry with materialThe extract was dried (Na2SO4)
  3. customthe solvent evaporated in vacuo
  4. customThe residue was purified by SPE (silica, 10 g)
  5. washElution with dichloromethane-ethanol—0

Sources & evidence

ORD record
ord-2553e872ba114daca216454a06767270
Source dataset
uspto-grants-2008_10
Patent number
US07439393B2

Reaction notes

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