4-Amino-2,3,5,6-tetrafluorobenzoic acid → 1-[2-(4-Amino-2,3,5,6-tetrafluoro-benzoylamino)-propionyl]-pyrrolidine-2-carboxylic acid (2-benzyloxy-5-oxo-tetrahydro-furan-3-yl)-amide

HRID 900603Notes

Reaction equation

HRID 900603 reaction equation
C([O:5][C:6](=O)[NH:7][CH:8]([CH3:33])[C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16](=[O:32])[NH:17][CH:18]1[CH2:22][C:21](=[O:23])[O:20][CH:19]1[O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)=[O:10])(C)(C)C.[NH2:35][C:36]1[C:44]([F:45])=[C:43]([F:46])[C:39](C(O)=O)=[C:38]([F:47])[C:37]=1[F:48].O=C1OC(OCCC2C=CC=CC=2)C(NC(C2CCCN2C(=O)C(NC(=O)C2C=CC(N)=C(Cl)C=2)C)=O)C1>>[CH2:25]([O:24][CH:19]1[CH:18]([NH:17][C:16]([CH:12]2[CH2:13][CH2:14][CH2:15][N:11]2[C:9](=[O:10])[CH:8]([NH:7][C:6](=[O:5])[C:39]2[C:38]([F:47])=[C:37]([F:48])[C:36]([NH2:35])=[C:44]([F:45])[C:43]=2[F:46])[CH3:33])=[O:32])[CH2:22][C:21](=[O:23])[O:20]1)[C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1

Participants

4

Reactant 3

HCID 703454-Amino-2,3,5,6-tetrafluorobenzoic acidHCID 229775121-[2-(4-Amino-3-chloro-benzoylamino)-propionyl]-pyrrolidine-2-carboxylic acid (5-oxo-2-phenethyloxy-tetrahydro-furan-3-yl)-amideHCID 22977790{2-[2-(2-Benzyloxy-5-oxo-tetrahydro-furan-3-ylcarbamoyl)-pyrrolidin-1-yl]-1-methyl-2-oxo-ethyl}-carbamic acid tert-butyl ester

Product 1

HCID 229774891-[2-(4-Amino-2,3,5,6-tetrafluoro-benzoylamino)-propionyl]-pyrrolidine-2-carboxylic acid (2-benzyloxy-5-oxo-tetrahydro-furan-3-yl)-amideYield 73%

Procedure

Prepared from {2-[2-(2-benzyloxy-5-oxo-tetrahydro-furan-3-ylcarbamoyl)-pyrrolidin-1-yl]-1-methyl-2-oxo-ethyl}-carbamic acid tert-butyl ester and 4-amino-2,3,5,6-tetrafluoro-benzoic acid according to the procedure used to prepare 98a to afford 58 mg of title compound (73% yield). 1H-NMR (500 MHz, 1:1 CDCl3:CD3OD) δ 1.30-1.50 (m, 3H), 1.62-2.35 (m, 4H), 2.45-3.12 (m, 2H), 3.50-3.90 (m, 2H), 4.20-4.95 (m, 5H), 5.42 (s, 0.4H), 5.52 (s, 0.1H), 5.64 (d, 0.4H), 5.82 (d, 0.1H), 7.25-7.65 (m, 5H). Analytical HPLC: 16.56, 16.90 min. LC-MS (ES+): m/e=567.2 (M+H+).

Sources & evidence

ORD record
ord-8393dc5eb81b4264b9f672e0008c1ccb
Source dataset
uspto-grants-2008_04
Patent number
US07358273B2

Reaction notes

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