1-Hydroxybenzotriazole → HCID 57508091, compound

HRID 349051Notes

Reaction equation

HRID 349051 reaction equation
[CH2:1]([N:4]([CH2:18][CH2:19][CH3:20])[C:5]1[C:14]2[C:9](=[CH:10][CH:11]=[C:12]([C:15]([OH:17])=O)[CH:13]=2)[CH:8]=[CH:7][N:6]=1)[CH2:2][CH3:3].[NH2:21][C@@H:22]([CH2:36][C:37]1[CH:42]=[C:41]([F:43])[CH:40]=[C:39]([F:44])[CH:38]=1)[C@H:23]([OH:35])[CH2:24][NH:25][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([CH2:33][CH3:34])[CH:28]=1.C1C=CC2N(O)N=NC=2C=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(Cl)Cl>[F:43][C:41]1[CH:42]=[C:37]([CH:38]=[C:39]([F:44])[CH:40]=1)[CH2:36][C@H:22]([NH:21][C:15]([C:12]1[CH:13]=[C:14]2[C:9]([CH:8]=[CH:7][N:6]=[C:5]2[N:4]([CH2:1][CH2:2][CH3:3])[CH2:18][CH2:19][CH3:20])=[CH:10][CH:11]=1)=[O:17])[C@H:23]([OH:35])[CH2:24][NH:25][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([CH2:33][CH3:34])[CH:28]=1

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 21085198HCID 21085198, compoundHCID 57487282(2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol

Product 1

HCID 57508091HCID 57508091, compoundYield 31.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 1-(dipropylamino)isoquinoline-7-carboxylic acid (103 mg, 0.38 mmol), (2R,3S)-3-Amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol (154 mg, 0.38 mmol), HOBt (77 mg, 0.57 mmol), and DIPEA (0.2 mL, 1.1 mmol) in methylene chloride (4 mL) was added HATU (216 mg, 0.57 mmol). The reaction mixture was stirred overnight and then partitioned between methylene chloride and 1 N hydrochloric acid. The organic layer was washed with saturated sodium bicarbonate, saturated sodium chloride, dried (sodium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 9:1 chloroform/methanol) gave N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-1-(dipropylamino)isoquinoline-7-carboxamide (70 mg): mp: 142–151° C.; APCI MS m/z 589 [M+H]+

Workup

  1. custompartitioned between methylene chloride and 1 N hydrochloric acid
  2. washThe organic layer was washed 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, 9:1 chloroform/methanol)

Sources & evidence

ORD record
ord-707ca196114c43b79753c6ce0ea73521
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Reaction notes

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