Triethylamine → HCID 59751421, compound

HRID 732744Notes

Reaction equation

HRID 732744 reaction equation
[CH3:1][S:2]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[C:12]([O:22][C:23]3[CH:28]=[CH:27][C:26]([O:29][CH2:30][CH2:31][N:32]4[CH2:37][CH2:36][CH2:35][CH2:34][CH2:33]4)=[CH:25][CH:24]=3)=[C:13]3[C:18](=[CH:19][CH:20]=2)[CH:17]=[C:16]([OH:21])[CH:15]=[CH:14]3)=[CH:7][CH:6]=1)(=[O:4])=[O:3].C(N(CC)CC)C.[CH3:45][N:46]=[C:47]=[O:48].C(=O)(O)[O-].[Na+]>ClCCl>[CH3:1][S:2]([C:5]1[CH:6]=[CH:7][C:8]([C:11]2[C:12]([O:22][C:23]3[CH:28]=[CH:27][C:26]([O:29][CH2:30][CH2:31][N:32]4[CH2:37][CH2:36][CH2:35][CH2:34][CH2:33]4)=[CH:25][CH:24]=3)=[C:13]3[C:18](=[CH:19][CH:20]=2)[CH:17]=[C:16]([O:21][C:47](=[O:48])[NH:46][CH3:45])[CH:15]=[CH:14]3)=[CH:9][CH:10]=1)(=[O:4])=[O:3]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 12228Methyl IsocyanateHCID 516892Sodium BicarbonateHCID 5327043648904-56-7

Product 1

HCID 59751421HCID 59751421, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Dissolve the compound of Example 3 (201 mg, 0.38 mmol) in dichloromethane (4 L) and add triethylamine (0.50 mL, 3.5 mmol) followed by methylisocyanate (500 mg, 8.7 mmol). After stirring for 30 minutes, pour the reaction mixture into saturated aqueous sodium bicarbonate and extract with dichloromethane. Dry the organic layer with sodium sulfate, filter and concentrate in vacuo. Chromatograph the residue on a SiO2 column eluting with methanol in dichloromethane (0 to 4%) to give 130 mg of the title compound (60%): mass spectrum (ion spray): m/z=575.3 (M+H) and 518.3 (M−MeNCO).

Workup

  1. extractionextract with dichloromethane
  2. dry with materialDry the organic layer with sodium sulfate
  3. filtrationfilter
  4. concentrationconcentrate in vacuo
  5. washChromatograph the residue on a SiO2 column eluting with methanol in dichloromethane (0 to 4%)

Sources & evidence

ORD record
ord-4f00f599df0d43a7a19b7b721dc0eb50
Source dataset
uspto-grants-2009_09
Patent number
US07585977B2

Reaction notes

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