Diisopropylethylamine → HCID 69336700, compound

HRID 844864Notes

Reaction equation

HRID 844864 reaction equation
Cl.[CH3:2][O:3][C:4](=[O:27])[C@H:5]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[C:15](=[O:26])[N:16]([CH2:24][CH3:25])[C:17](=[O:23])[N:18]([CH2:21][CH3:22])[C:19]=2[CH3:20])=[CH:10][CH:9]=1)[NH2:6].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[Cl:52][C:53]1[CH:61]=[CH:60][CH:59]=[C:58]([CH3:62])[C:54]=1[C:55](O)=[O:56].C(N(C(C)C)CC)(C)C>CN(C=O)C.C(OCC)(=O)C>[CH3:2][O:3][C:4](=[O:27])[C@H:5]([CH2:7][C:8]1[CH:9]=[CH:10][C:11]([C:14]2[C:15](=[O:26])[N:16]([CH2:24][CH3:25])[C:17](=[O:23])[N:18]([CH2:21][CH3:22])[C:19]=2[CH3:20])=[CH:12][CH:13]=1)[NH:6][C:55]([C:54]1[C:58]([CH3:62])=[CH:59][CH:60]=[CH:61][C:53]=1[Cl:52])=[O:56]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 888702-Chloro-6-methylbenzoic acidHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 69336846HCID 69336846, compound

Product 1

HCID 69336700HCID 69336700, compoundYield 98%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of 4-(1,3-diethyl-6-methyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine methyl ester hydrochloride salt (0.758 mmol, 300 mg), HBTU (0.84 mmol, 318 mg) and 2-chloro-6-methylbenzoic acid (0.84 mmol, 142 mg) in DMF (2 mL) was added diisopropylethylamine (1.9 mmol, 0.33 mL) at room temperature. After 5 min, everything went into solution and the clear yellow solution was stirred for 48 h at room temperature. The resulting dark-brown solution was diluted with ethyl acetate (30 mL). The ethyl acetate layer was washed successively with 1N hydrochloric acid (2×30 mL), saturated sodium bicarbonate solution (30 mL), and brine solution (30 mL) and was dried over anhydrous magnesium sulfate. Filtration of the drying agent and concentration gave the crude product which was purified by silica gel chromatography using a Biotage (40m) column to afford 380 mg (98% yield) of N-[(2-chloro-6-methylphenyl)carbonyl]-4-(1,3-diethyl-6-methyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine methyl ester as an amorphous white solid. ES-HRMS m/e calcd for C27H30ClN3O5 (M+Na) 535.1026, found 535.1024.

Workup

  1. washThe ethyl acetate layer was washed successively with 1N hydrochloric acid (2×30 mL), saturated sodium bicarbonate solution (30 mL), and brine solution (30 mL)
  2. dry with materialwas dried over anhydrous magnesium sulfate
  3. filtrationFiltration of the drying agent and concentration
  4. customgave the crude product which
  5. customwas purified by silica gel chromatography

Sources & evidence

ORD record
ord-8161ed5554cb408e865cc0b07a2c9fae
Source dataset
uspto-grants-2002_04
Patent number
US06380387B1

Reaction notes

Loading…