Reaction #7397

Reaction equation

(2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoic acid

3-methylpiperidine

→

title compound

Yield 27.3%

6-Chloro-N-{(3S)-1-[(1S)-1-methyl-2-(3-methylpiperidin-1-yl)-2-oxoethyl]-2-oxopyrrolidin-3-yl}naphthalene-2-sulfonamide

Yield 27.3%

Solvents

N,N-diisopropylethylamine

DCM

DMF

Conditions

Workup

1. 1
   Otherthe filtrate collected
2. 2
   Washthe resin washed with DCM
3. 3
   ConcentrationThe combined DCM solutions were concentrated under reduced pressure
4. 4
   Otherthe residue purified by mass

Procedure

To polymer N-cyclohexylcarbodiimide-N′-propyloxymethyl polystyrene (0.038 g) in an Alltech™ tube was added a solution of (2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoic acid (0.007 g) in DCM (0.9 ml) followed by 3-methylpiperidine (0.0025 g) in DMF (0.1 ml) and N,N-diisopropylethylamine (0.006 ml). The mixture was shaken at room temperature for 4 days. The tube was drained, the filtrate collected and the resin washed with DCM. The combined DCM solutions were concentrated under reduced pressure and the residue purified by mass directed preparative h.p.l.c. to give the title compound (0.0023 g) as a white solid.

Source