Diisopropylethylamine → (2S,4R)-5-Biphenyl-4-yl-2-hydroxymethyl-2-methyl-4-[(3H-[1,2,3]triazole-4-carbonyl)-amino]-pentanoic acid butyryloxymethyl ester

HRID 448632Notes

Reaction equation

HRID 448632 reaction equation
[NH:1]1[CH:5]=[C:4]([C:6]([OH:8])=O)[N:3]=[N:2]1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[C:42]([O:47][CH2:48][O:49][C:50](=[O:71])[C@@:51]([CH2:69][OH:70])([CH3:68])[CH2:52][C@H:53]([NH2:67])[CH2:54][C:55]1[CH:60]=[CH:59][C:58]([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)=[CH:57][CH:56]=1)(=[O:46])[CH2:43][CH2:44][CH3:45]>CN(C=O)C>[C:42]([O:47][CH2:48][O:49][C:50](=[O:71])[C@@:51]([CH2:69][OH:70])([CH3:68])[CH2:52][C@H:53]([NH:67][C:6]([C:4]1[NH:3][N:2]=[N:1][CH:5]=1)=[O:8])[CH2:54][C:55]1[CH:56]=[CH:57][C:58]([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)=[CH:59][CH:60]=1)(=[O:46])[CH2:43][CH2:44][CH3:45]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 1401204-Carboxy-1,2,3-triazoleHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 68181107(2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid butyryloxymethyl ester

Product 1

HCID 178454739(2S,4R)-5-Biphenyl-4-yl-2-hydroxymethyl-2-methyl-4-[(3H-[1,2,3]triazole-4-carbonyl)-amino]-pentanoic acid butyryloxymethyl esterYield 1.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1,2,3-Triazole-4-carboxylic acid (14 mg, 124 μmol), DIPEA (86.3 μL, 496 μmol) and HATU (47.1 mg, 124 μmol) were combined in DMF (0.2 mL) and stirred for 5 minutes at room temperature. This was then combined with (2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid butyryloxymethyl ester (51 mg, 120 μmol). The resulting mixture was stirred for 15 minutes and the reaction was quenched with AcOH. The product purified by preparative HPLC and lyophilized to yield the title compound (1 mg; purity 95%). MS m/z [M+H]+ calc'd for C27H32N4O6, 509.23. found 509.4.

Workup

  1. stirringThe resulting mixture was stirred for 15 minutes
  2. customthe reaction was quenched with AcOH
  3. customThe product purified by preparative HPLC

Sources & evidence

ORD record
ord-300bd3eabd144e46810e5112145fdf9c
Source dataset
uspto-grants-2013_07
Patent number
US08481044B2

Reaction notes

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