4-Methylmorpholine → N-([4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetyl}-D-valine

HRID 254071Notes

Reaction equation

HRID 254071 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:11](=[O:12])[C@H:10]([S:13][CH2:14][C:15]([C:17]3[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=3)=[O:16])[C@H:9]2[C:24]2[CH:34]=[CH:33][C:27]([O:28][CH2:29][C:30]([OH:32])=O)=[CH:26][CH:25]=2)=[CH:4][CH:3]=1.Cl.[NH2:36][C@@H:37]([C:41]([O:43]C(C)(C)C)=[O:42])[CH:38]([CH3:40])[CH3:39].CN1CCOCC1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:11](=[O:12])[C@H:10]([S:13][CH2:14][C:15]([C:17]3[CH:18]=[CH:19][C:20]([F:23])=[CH:21][CH:22]=3)=[O:16])[C@H:9]2[C:24]2[CH:34]=[CH:33][C:27]([O:28][CH2:29][C:30]([NH:36][C@@H:37]([C:41]([OH:43])=[O:42])[CH:38]([CH3:40])[CH3:39])=[O:32])=[CH:26][CH:25]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 45108216H-D-Val-OtBu hydrochlorideHCID 66842813[4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetic acid

Product 1

HCID 66842727N-([4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetyl}-D-valine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

[4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetic acid, (50.0 mg, 0.10 mmol) was dissolved in DCM (2 ml). tert-Butyl D-valinate hydrochloride (28.4 mg, 0.14 mmol) and N-methylmorpholine (3.0 μl, 0.31 mmol) were added. After 5 minutes, TBTU (43.7 mg, 0.14 mmol) was added and the mixture was stirred overnight. The intermediate tert-butylester of the title compound was confirmed. M/z: 637.1 (M−H). The solvent was removed under reduced pressure. The yellow residue was dissolved in formic acid (1.5 ml) and heated at 50° C. for 5 h. The solvent was evaporated and the residue was purified by preparative HPLC on a C8 column. A gradient from 20 to 50% MeCN in 0.1 M ammonium acetate buffer was used as eluent. After lyophilisation, the title compound was obtained as a white solid (30.5 mg, 51%). 1H-NMR (400 MHz, DMS-d6): 0.74 (t, 6H), 1.98-2.07 (m, 1H), 3.84 (brs, 1H), 4.32 (d, 1H), 4.35 (s, 1H), 4.36 (s, 1H), 4.50 (brs, 2H), 5.16 (d, 1H), 6.96 (d, 2H), 7.10-7.17 (m, 2H), 7.19-7.24 (m, 2H), 7.31-7.38 (m, 4H), 7.66 (brs, 1H), 7.99-8.04 (m, 2H). M/z: 583.0 (M+H) and 581.0 (M−H).

Sources & evidence

ORD record
ord-84d2b8ea24ac4e66887f3028201d984e
Source dataset
uspto-grants-2011_01
Patent number
US07871998B2

Reaction notes

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