Hydrochloric Acid → N-{(1S,2R)-1-(3,5-Difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-3-{[(2S)-2-(methoxymethyl)pyrrolidin-1-yl]methyl}-5-methylbenzamide Dihydrochloride

HRID 348939Notes

Reaction equation

HRID 348939 reaction equation
[CH3:1][O:2][CH2:3][C@@H:4]1[CH2:8][CH2:7][CH2:6][N:5]1[CH2:9][C:10]1[CH:11]=[C:12]([CH:16]=[C:17]([CH3:19])[CH:18]=1)[C:13]([OH:15])=O.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C1C=CC2N(O)N=NC=2C=1.C(N(CC)C(C)C)(C)C.[NH2:63][C@@H:64]([CH2:78][C:79]1[CH:84]=[C:83]([F:85])[CH:82]=[C:81]([F:86])[CH:80]=1)[C@H:65]([OH:77])[CH2:66][NH:67][CH2:68][C:69]1[CH:74]=[CH:73][CH:72]=[C:71]([CH2:75][CH3:76])[CH:70]=1.[ClH:87]>C(Cl)Cl.CO.C(OCC)C>[ClH:87].[ClH:87].[F:85][C:83]1[CH:84]=[C:79]([CH:80]=[C:81]([F:86])[CH:82]=1)[CH2:78][C@H:64]([NH:63][C:13](=[O:15])[C:12]1[CH:16]=[C:17]([CH3:19])[CH:18]=[C:10]([CH2:9][N:5]2[CH2:6][CH2:7][CH2:8][C@H:4]2[CH2:3][O:2][CH3:1])[CH:11]=1)[C@H:65]([OH:77])[CH2:66][NH:67][CH2:68][C:69]1[CH:74]=[CH:73][CH:72]=[C:71]([CH2:75][CH3:76])[CH:70]=1

Participants

10

Reactant 6

HCID 313Hydrochloric AcidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57487282(2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-olHCID 574873683-{[(2S)-2-(Methoxymethyl)pyrrolidin-1-yl]methyl}-5-methylbenzoic Acid

Product 1

HCID 68609540N-{(1S,2R)-1-(3,5-Difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-3-{[(2S)-2-(methoxymethyl)pyrrolidin-1-yl]methyl}-5-methylbenzamide Dihydrochloride

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of 3-{[(2S)-2-(methoxymethyl)pyrrolidin-1-yl]methyl}-5-methylbenzoic acid (110 mg, 0.42 mmol) in methylene chloride (3 mL) is added HBTU (240 mg, 0.63 mmol), HOBt (85 mg, 0.63 mmol), and N,N-diisopropylethylamine (0.212 mL, 1.26 mmol), followed by (2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol prepared by the method of EXAMPLE SP-272 (171 mg, 0.42 mmol). The reaction mixture is stirred for 12 h at room temperature. The reaction mixture is diluted with methylene chloride, washed with water, and saturated sodium bicarbonate, dried (magnesium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 10% methanol/chloroform) affords a clear oil, which is dissolved in methanol (2 mL). To this solution is added hydrochloric acid (5 mL, 4 N dioxane, 20 mmol), and the reaction mixture is stirred for 1 h at room temperature. The reaction mixture is then diluted with ethyl ether (10 mL). The precipitate that is formed was collected by filtration to provide the title compound. ESI MS m/z 580.4 [M+H]+.

Workup

  1. washwashed with water, and saturated sodium bicarbonate
  2. dry with materialdried (magnesium sulfate)
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customPurification by flash column chromatography (silica, 10% methanol/chloroform)
  6. customaffords a clear oil, which
  7. stirringthe reaction mixture is stirred for 1 h at room temperature
  8. customThe precipitate that is formed
  9. filtrationwas collected by filtration

Sources & evidence

ORD record
ord-2f53464d6f4c4de2aa01e649e0bfa1a2
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Reaction notes

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