Hydrochloric Acid → methyl N-[(2S)-1-[(2S,5S)-2-[5-[6-[(2S,4S)-1-[(2S)-2-(methoxycarbonylamino)-3-methylbutanoyl]-4-(methoxymethyl)pyrrolidin-2-yl]-21-oxa-5,7-diazapentacyclo[11.8.0.03,11.04,8.014,19]henicosa-1(13),2,4(8),5,9,11,14(19),15,17-nonaen-17-yl]-1H-imidazol-2-yl]-5-methylpyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate

HRID 1412942Notes

Reaction equation

HRID 1412942 reaction equation
[CH3:1][O:2][C:3]([NH:5][C@H:6]([C:10]([N:12]1[C@@H:16]([CH3:17])[CH2:15][CH2:14][C@H:13]1[C:18]1[NH:19][C:20]([C:23]2[CH:28]=[C:27]3[CH2:29][O:30][C:31]4[CH:58]=[C:57]5[C:34]([CH:35]=[CH:36][C:37]6[NH:41][C:40]([C@@H:42]7[CH2:46][C@H:45]([CH2:47][O:48][CH3:49])[CH2:44][N:43]7C(OC(C)(C)C)=O)=[N:39][C:38]=65)=[CH:33][C:32]=4[C:26]3=[CH:25][CH:24]=2)=[CH:21][N:22]=1)=[O:11])[CH:7]([CH3:9])[CH3:8])=[O:4].Cl.[CH3:60][O:61][C:62]([NH:64][CH:65]([CH:69]([CH3:71])[CH3:70])[C:66](O)=[O:67])=[O:63].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C>CN(C=O)C.C(OCC)(=O)C.C(O)C>[CH3:1][O:2][C:3](=[O:4])[NH:5][C@@H:6]([CH:7]([CH3:9])[CH3:8])[C:10]([N:12]1[C@@H:16]([CH3:17])[CH2:15][CH2:14][C@H:13]1[C:18]1[NH:19][C:20]([C:23]2[CH:28]=[C:27]3[CH2:29][O:30][C:31]4[CH:58]=[C:57]5[C:34]([CH:35]=[CH:36][C:37]6[N:41]=[C:40]([C@@H:42]7[CH2:46][C@H:45]([CH2:47][O:48][CH3:49])[CH2:44][N:43]7[C:66](=[O:67])[C@@H:65]([NH:64][C:62]([O:61][CH3:60])=[O:63])[CH:69]([CH3:71])[CH3:70])[NH:39][C:38]=65)=[CH:33][C:32]=4[C:26]3=[CH:25][CH:24]=2)=[CH:21][N:22]=1)=[O:11]

Participants

9

Reactant 5

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 138211012-((Methoxycarbonyl)amino)-3-methylbutanoic acidHCID 67682482HCID 67682482, compound

Product 1

HCID 178495653methyl N-[(2S)-1-[(2S,5S)-2-[5-[6-[(2S,4S)-1-[(2S)-2-(methoxycarbonylamino)-3-methylbutanoyl]-4-(methoxymethyl)pyrrolidin-2-yl]-21-oxa-5,7-diazapentacyclo[11.8.0.03,11.04,8.014,19]henicosa-1(13),2,4(8),5,9,11,14(19),15,17-nonaen-17-yl]-1H-imidazol-2-yl]-5-methylpyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamateYield 45%

Reagents, catalysts & solvents 3

HCID 702EthanolSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of tert-butyl(2S,4S)-2-[9-(2-{(2S,5S)-1-[N-(methoxycarbonyl)-L-valyl]-5-methylpyrrolidin-2-yl}-1H-imidazol-5-yl)-3,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl]-4-(methoxy methyl)pyrrolidine-1-carboxylate (108 mg, 0.14 mmol), ethanol (2 mL) and concentrated HCl (0.7 mL) was heated to 60° C. for 1 hour. The reaction was concentrated and the crude material dissolved in DCM (10 mL). This solution was concentrated and to this material was added a solution of 2-methoxycarbonylamino-3-methylbutyric acid (31 mg, 0.18 mmol) and HATU (60 mg, 0.16 mmol) in DMF (2 mL). To the resulting solution was added diisopropylethylamine (70 μL, 0.41 mmol). After stirring for 2 hours at room temperature, the reaction was diluted with ethyl acetate, washed with 5% NaHCO3 solution, water and brine, dried (Na2SO4). After stirring for 2 hours at room temperature, the reaction was diluted with ethyl acetate, washed with 5% NaHCO3 solution, water and brine, dried (Na2SO4), concentrated and purified by preparative reverse phase HPLC (Gemini, 15 to 43% ACN/H2O+0.1% TFA). The product fractions were lyophilized to give methyl{(2S)-1-[(2S,5S)-2-(5-{2-[(2S,4S)-1-{(2S)-2-[(methoxycarbonyl)amino]-3-methylbutanoyl}-4-methoxy methylpyrrolidin-2-yl]-1,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-9-yl}-1H-imidazol-2-yl)-5-methylpyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl}carbamate (52 mg, 45%). MS (ESI) m/z 850 [M+H]+.

Workup

  1. concentrationThe reaction was concentrated
  2. dissolutionthe crude material dissolved in DCM (10 mL)
  3. concentrationThis solution was concentrated and to this material
  4. washwashed with 5% NaHCO3 solution, water and brine
  5. dry with materialdried (Na2SO4)
  6. stirringAfter stirring for 2 hours at room temperature
  7. additionthe reaction was diluted with ethyl acetate
  8. washwashed with 5% NaHCO3 solution, water and brine
  9. dry with materialdried (Na2SO4)
  10. concentrationconcentrated
  11. custompurified by preparative reverse phase HPLC (Gemini, 15 to 43% ACN/H2O+0.1% TFA)

Sources & evidence

ORD record
ord-f71823cb86a745b5a71304dc28dd7912
Source dataset
uspto-grants-2014_12
Patent number
US08921341B2

Reaction notes

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