Nitrogen → HCID 67128536, compound
Reaction equation
N#N.[CH3:3][O:4][C:5](=[O:19])[CH:6]([NH:9][C:10](=[O:18])[CH2:11][CH2:12][CH2:13][CH2:14][C:15](=[O:17])[CH3:16])[CH2:7]O.[OH-].COC(NS([N+](CC)(CC)CC)(=O)=O)=O>>[CH3:3][O:4][C:5]([CH:6]1[CH2:7][O:18][C:10]([CH2:11][CH2:12][CH2:13][CH2:14][C:15](=[O:17])[CH3:16])=[N:9]1)=[O:19]Participants
Conditions
- Temperature
- 0 °C
Procedure
In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a solution of 3-hydroxy-2-(6-oxo-heptanoylamino)-propionic acid methyl ester (1.50 g, 6.12 mmol) in dry and degassed THF (24 mL) was added at −10° C. to a solution of (methoxycarbonylsulfamoyl)triethylammonium hydroxide (1.79 g, 7.31 mmol) in dry and degassed THF (24 mL) and the resulting suspension was stirred at 0° C. for 1.5 h. The reaction mixture was then stirred at reflux for 1 h. The mixture was then allowed to cool down to rt and filtered and the solvent was removed under reduced pressure. Purification of the residue by FC (97:3 EA-MeOH) gave the title compound as a light yellow oil. TLC: rf (97:3 EA-MeOH)=0.37. LC-MS-conditions 02: tR=0.62 min [M+H]+=228.53.
Workup
- customdegassed THF (24 mL)
- customin dry
- customdegassed THF (24 mL)
- stirringThe reaction mixture was then stirred
- temperatureat reflux for 1 h
- temperatureto cool down to rt
- filtrationfiltered
- customthe solvent was removed under reduced pressure
- customPurification of the residue by FC (97:3 EA-MeOH)
Sources & evidence
- ORD record
- ord-49b86f4a2cf2498398b02bca15fb138a
- Source dataset
- uspto-grants-2014_03
- Patent number
- US08674111B2
Reaction notes
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