Diisopropylethylamine → HCID 58802812, compound

HRID 349045Notes

Reaction equation

HRID 349045 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([C:11]([OH:13])=O)[CH:9]=2)[CH:4]=[CH:3][N:2]=1.C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:47][C@@H:48]([CH2:62][C:63]1[CH:68]=[C:67]([F:69])[CH:66]=[C:65]([F:70])[CH:64]=1)[C@H:49]([OH:61])[CH2:50][NH:51][CH2:52][C:53]1[CH:58]=[CH:57][CH:56]=[C:55]([CH2:59][CH3:60])[CH:54]=1>C(Cl)Cl>[F:69][C:67]1[CH:68]=[C:63]([CH:64]=[C:65]([F:70])[CH:66]=1)[CH2:62][C@H:48]([NH:47][C:11]([C:8]1[CH:9]=[C:10]2[C:5]([CH:4]=[CH:3][N:2]=[CH:1]2)=[CH:6][CH:7]=1)=[O:13])[C@H:49]([OH:61])[CH2:50][NH:51][CH2:52][C:53]1[CH:58]=[CH:57][CH:56]=[C:55]([CH2:59][CH3:60])[CH:54]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 18468721Isoquinoline-7-carboxylic acidHCID 57487282(2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol

Product 1

HCID 58802812HCID 58802812, compoundYield 17.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of isoquinoline-7-carboxylic acid (200 mg, 1.15 mmol) and N,N-diisopropyl ethylamine (1.20 mL, 6.88 mmol) in methylene chloride (14.0 mL) was added HBTU (438 mg, 1.15 mmol) and the reaction stirred for 0.5 h. (2R,3S)-3-Amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol (470 mg, 1.15 mmol) was added in one portion and the reaction mixture was stirred under nitrogen for 18 h. The reaction mixture was then diluted with additional methylene chloride and washed with saturated sodium bicarbonate, saturated sodium chloride, dried (sodium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 0–5% methanol/methylene chloride) gave N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}isoquinoline-7-carboxamide (100 mg) which was characterized as its bis-HCl salt: mp 142–143° C.; ESI MS m/z 490 [M+H]+

Workup

  1. additionwas added in one portion
  2. washwashed with saturated sodium bicarbonate, saturated sodium chloride
  3. dry with materialdried (sodium sulfate)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customPurification by flash column chromatography (silica, 0–5% methanol/methylene chloride)

Sources & evidence

ORD record
ord-a2e1427cac874b0784aa99bd36d17c9c
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Reaction notes

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