1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 86613180, compound
Reaction equation
N12CCCN=C1CCCCC2.[NH2:12][CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[C:20]1[CH:25]=[CH:24][C:23]([C:26]2[S:27][CH:28]=[CH:29][C:30]=2[NH:31][S:32]([CH:35]([CH3:37])[CH3:36])(=[O:34])=[O:33])=[CH:22][CH:21]=1.[CH:38]([S:41](Cl)(=[O:43])=[O:42])([CH3:40])[CH3:39]>ClCCl>[CH3:39][CH:38]([S:41]([NH:12][CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[C:20]1[CH:25]=[CH:24][C:23]([C:26]2[S:27][CH:28]=[CH:29][C:30]=2[NH:31][S:32]([CH:35]([CH3:37])[CH3:36])(=[O:34])=[O:33])=[CH:22][CH:21]=1)(=[O:43])=[O:42])[CH3:40]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
Add 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU) drop wise (85 mg, 0.6 mmol) to a suspension of propane-2-sulfonic acid [2-(2′-aminomethyl-biphenyl-4-yl)-thiophen-3-yl]-amide (57 mg, 0.15 mmol) in dichloromethane (2 ml) at 0° C., followed by drop wise addition of isopropylsulfonyl chloride (42 mg, 0.3 mmol) and stir the reaction at room temperature overnight. Remove solvent under reduce pressure. Purify with flash chromatography (Silica gel-hexane/EtOAc). Concentrate the desired fractions to provide propane-2-sulfonic acid (2-{2′-[(propane-2-sulfonylamino)-methyl]-biphenyl-4-yl}-thiophen-3-yl)-amide. MS (m/e): 491.1(M−1), propane-2-sulfonic acid (2-{2′,2′-bis-[(propane-2-sulfonylamino)-methyl]-biphenyl-4-yl}-thiophen-3-yl)-amide. MS (m/e): 510.2(M−1).
Workup
- customthe reaction at room temperature overnight
- customPurify with flash chromatography (Silica gel-hexane/EtOAc)
- concentrationConcentrate the desired fractions
Sources & evidence
- ORD record
- ord-0510e15f9ebb4955b9e01ee26d5de4a5
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07393868B2
Reaction notes
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