Triethylamine → acetic acid {[(R)-6-(3-fluoro-benzenesulfonyl)-1,2,3,4-tetrahydro-naphthalen-1-ylmethyl]-carbamoyl}-methyl ester

HRID 2242628Notes

Reaction equation

HRID 2242628 reaction equation
Cl.[F:2][C:3]1[CH:4]=[C:5]([S:9]([C:12]2[CH:13]=[C:14]3[C:19](=[CH:20][CH:21]=2)[CH:18]([CH2:22][NH2:23])[CH2:17][CH2:16][CH2:15]3)(=[O:11])=[O:10])[CH:6]=[CH:7][CH:8]=1.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C.[O:41]=[C:42](C)[CH2:43][O:44][C:45](=[O:47])[CH3:46]>C(Cl)Cl>[F:2][C:3]1[CH:4]=[C:5]([S:9]([C:12]2[CH:13]=[C:14]3[C:19](=[CH:20][CH:21]=2)[C@H:18]([CH2:22][NH:23][C:42]([CH2:43][O:44][C:45](=[O:47])[CH3:46])=[O:41])[CH2:17][CH2:16][CH2:15]3)(=[O:11])=[O:10])[CH:6]=[CH:7][CH:8]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 11593AcetoxyacetoneHCID 757711-HydroxybenzotriazoleHCID 66651558C-[6-(3-Fluoro-benzenesulfonyl)-1,2,3,4-tetrahydro-naphthalen-1-yl]-methylamine hydrochloride

Product 1

HCID 59207182acetic acid {[(R)-6-(3-fluoro-benzenesulfonyl)-1,2,3,4-tetrahydro-naphthalen-1-ylmethyl]-carbamoyl}-methyl esterYield 70.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

C-[6-(3-Fluoro-benzenesulfonyl)-1,2,3,4-tetrahydro-naphthalen-1-yl]-methylamine hydrochloride (0.12 gms, 0.338 mmole), 1-hydroxybenzotriazole (0.07 g, 0.507 mmol) ethylcarbodiimide (0.10 g, 0.507 mmol), triethylamine (0.3 mL, 2.0 mmol) and acetic acid 2-oxo-propyl ester (0.05 g, 0.40 mmol) were dissolved in 10 mL methylene chloride. The reaction mixture was stirred at room temperature for 24 hours. The reaction was quenched with water, and the entire mixture was absorbed on to silica gel and medium pressure chromatography, and eluted with ethyl acetate//hexanes (3:1) to give 0.1 g of acetic acid {[(R)-6-(3-fluoro-benzenesulfonyl)-1,2,3,4-tetrahydro-naphthalen-1-ylmethyl]-carbamoyl}-methyl ester.

Workup

  1. customThe reaction was quenched with water
  2. customthe entire mixture was absorbed on to silica gel and medium pressure chromatography
  3. washeluted with ethyl acetate//hexanes (3:1)

Sources & evidence

ORD record
ord-6915e139497244cc95f64a63b73a300e
Source dataset
uspto-grants-2010_03
Patent number
US07671235B2

Reaction notes

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