Acetic Acid → HCID 86678415, compound

HRID 882650Notes

Reaction equation

HRID 882650 reaction equation
[CH3:1][NH:2][C@H:3]([C:7]([NH:9][C@H:10]([C:14]([N:16]([C@@H:18]([C@@H:57]([CH3:60])[CH2:58][CH3:59])[C@H:19]([O:55][CH3:56])[CH2:20][C:21]([N:23]1[CH2:27][CH2:26][CH2:25][C@H:24]1[C@H:28]([O:53][CH3:54])[C@@H:29]([CH3:52])[C:30]([NH:32][C@@H:33]([CH2:42][C:43]1[C:51]2[C:46](=[CH:47][CH:48]=[CH:49][CH:50]=2)[NH:45][CH:44]=1)[C:34]([N:36]1[CH2:41][CH2:40][CH2:39][CH2:38][O:37]1)=[O:35])=[O:31])=[O:22])[CH3:17])=[O:15])[CH:11]([CH3:13])[CH3:12])=[O:8])[CH:4]([CH3:6])[CH3:5].O=[CH:62][CH2:63][CH2:64][CH2:65][CH2:66][C:67]([OH:69])=[O:68].C(O)(=O)C>CO>[C:67]([CH2:66][CH2:65][CH2:64][CH2:63][CH2:62][N:2]([CH3:1])[C@H:3]([C:7]([NH:9][C@H:10]([C:14]([N:16]([C@@H:18]([C@@H:57]([CH3:60])[CH2:58][CH3:59])[C@H:19]([O:55][CH3:56])[CH2:20][C:21]([N:23]1[CH2:27][CH2:26][CH2:25][C@H:24]1[C@H:28]([O:53][CH3:54])[C@@H:29]([CH3:52])[C:30]([NH:32][C@@H:33]([CH2:42][C:43]1[C:51]2[C:46](=[CH:47][CH:48]=[CH:49][CH:50]=2)[NH:45][CH:44]=1)[C:34]([N:36]1[CH2:41][CH2:40][CH2:39][CH2:38][O:37]1)=[O:35])=[O:31])=[O:22])[CH3:17])=[O:15])[CH:11]([CH3:12])[CH3:13])=[O:8])[CH:4]([CH3:5])[CH3:6])([OH:69])=[O:68]

Participants

5

Reactant 3

HCID 176Acetic AcidHCID 4409186-Oxohexanoic acidHCID 86678408HCID 86678408, compound2×

Product 1

HCID 86678415HCID 86678415, compoundYield 91.7%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

80 mg (0.08 mmol) of N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-3-(1H-indol-3-yl)-1-(1,2-oxazinan-2-yl)-1-oxopropan-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (Intermediate 192) and 65.4 mg (0.5 mmol) of 6-oxohexanoic acid were combined in 9 ml of methanol and admixed with 10 μl of acetic acid and 37.4 mg (0.4 mmol) of borane-pyridine complex. The reaction mixture was stirred at RT overnight. This was followed by concentration under reduced pressure, and the residue was taken up in 1:1 acetonitrile/water and adjusted to pH 2 with trifluoroacetic acid. The reaction mixture was concentrated again and the residue was purified by means of preparative HPLC. After concentration of the corresponding fractions, 70 mg (86% of theory) of N-(5-carboxypentyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-3-(1H-indol-3-yl)-1-(1,2-oxazinan-2-yl)-1-oxopropan-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide were obtained as the trifluoroacetate.

Workup

  1. concentrationThis was followed by concentration under reduced pressure
  2. concentrationThe reaction mixture was concentrated again
  3. customthe residue was purified by means of preparative HPLC

Sources & evidence

ORD record
ord-2dfadd2518854b658ff2ba78fda0ce69
Source dataset
uspto-grants-2015_03
Patent number
US08992932B2

Reaction notes

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