Sodium Hydroxide → HCID 86687287, compound

HRID 2285276Notes

Reaction equation

HRID 2285276 reaction equation
[C:1]([Si:5]([C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1)([C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)[O:6][CH2:7][C:8]([C:11]1[CH:12]=[C:13]([NH2:32])[N:14]([C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([O:22][CH2:23][CH2:24][O:25][CH:26]3[CH2:31][CH2:30][CH2:29][CH2:28][O:27]3)[CH:17]=2)[N:15]=1)([CH3:10])[CH3:9])([CH3:4])([CH3:3])[CH3:2].[OH-].[Na+].Cl[C:48]([O:50][CH2:51][C:52]([Cl:55])([Cl:54])[Cl:53])=[O:49]>CCOC(C)=O.O>[Cl:53][C:52]([Cl:55])([Cl:54])[CH2:51][O:50][C:48](=[O:49])[NH:32][C:13]1[N:14]([C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([O:22][CH2:23][CH2:24][O:25][CH:26]3[CH2:31][CH2:30][CH2:29][CH2:28][O:27]3)[CH:17]=2)[N:15]=[C:11]([C:8]([CH3:10])([CH3:9])[CH2:7][O:6][Si:5]([C:1]([CH3:2])([CH3:3])[CH3:4])([C:39]2[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=2)[C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[CH:12]=1

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 870632,2,2-Trichloroethyl chloroformateHCID 86687286HCID 86687286, compound

Product 1

HCID 86687287HCID 86687287, compoundYield 126.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent2×

Procedure

A solution of Intermediate 153e (0.41 g, 0.67 mmol) in EtOAc (3 6 mL) was treated with aqueous 1N NaOH (1.2 mL, 1.2 mmol) then 2,2,2-trichloroethyl chloroformate (0.10 mL, 0.74 mmol) and the mixture was stirred at RT for 4 h. The mixture was diluted with EtOAc and water and the phases were separated. The aqueous layer was extracted with EtOAc (×2) and the combined organic phase was washed with brine, dried (Na2SO4), and concentrated in vacuo to give a pale red oil (0.67 g). The oil was purified by FCC, using 0-25% EtOAc in cyclohexane to give the title compound as a pale golden gum (0.38 g, 72%). LCMS (Method 3): Rt 5.86 min, m/z 788.3, 790.3 [MH+].

Workup

  1. customthe phases were separated
  2. extractionThe aqueous layer was extracted with EtOAc (×2)
  3. washthe combined organic phase was washed with brine
  4. dry with materialdried (Na2SO4)
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a99e3fb63a314ce3b5c95f657a214410
Source dataset
uspto-grants-2015_09
Patent number
US09145413B2

Reaction notes

Loading…