Diisopropylethylamine → (2S,3R)-N-((S)-3-(cyclohex-1-en-1-yl)-1-((R)-2-methyloxiran-2-yl)-1-oxopropan-2-yl)-3-hydroxy-2-((S)-3-hydroxy-2-(2-morpholinoacetamido)propanamido)-3-(4-methoxyphenyl)propanamide

HRID 58813Notes

Reaction equation

HRID 58813 reaction equation
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[OH:34][C@H:35]([C:56]1[CH:61]=[CH:60][C:59]([O:62][CH3:63])=[CH:58][CH:57]=1)[C@H:36]([NH:40][C:41](=[O:55])[C@@H:42]([NH:45][C:46](=[O:54])[CH2:47][N:48]1[CH2:53][CH2:52][O:51][CH2:50][CH2:49]1)[CH2:43][OH:44])[C:37](O)=[O:38].[NH2:64][C@@H:65]([CH2:72][C:73]1[CH2:78][CH2:77][CH2:76][CH2:75][CH:74]=1)[C:66]([C@@:68]1([CH3:71])[CH2:70][O:69]1)=[O:67]>CN(C=O)C>[C:73]1([CH2:72][C@H:65]([NH:64][C:37](=[O:38])[C@@H:36]([NH:40][C:41](=[O:55])[C@@H:42]([NH:45][C:46](=[O:54])[CH2:47][N:48]2[CH2:49][CH2:50][O:51][CH2:52][CH2:53]2)[CH2:43][OH:44])[C@H:35]([OH:34])[C:56]2[CH:61]=[CH:60][C:59]([O:62][CH3:63])=[CH:58][CH:57]=2)[C:66]([C@@:68]2([CH3:71])[CH2:70][O:69]2)=[O:67])[CH2:78][CH2:77][CH2:76][CH2:75][CH:74]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 117607990HCID 117607990, compoundHCID 117608085(2S,3R)-3-hydroxy-2-((S)-3-hydroxy-2-(2-morpholinoacetamido)propanamido)-3-(4-methoxyphenyl)propanoic acid

Product 1

HCID 117607902(2S,3R)-N-((S)-3-(cyclohex-1-en-1-yl)-1-((R)-2-methyloxiran-2-yl)-1-oxopropan-2-yl)-3-hydroxy-2-((S)-3-hydroxy-2-(2-morpholinoacetamido)propanamido)-3-(4-methoxyphenyl)propanamideYield 68.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Sequentially HATU (537 mg, 1.41 mmol) and DIEA (1.02 mL, 5.88 mmol) were added to a 0° C. solution of (2S,3R)-3-hydroxy-2-((S)-3-hydroxy-2-(2-morpholinoacetamido)propanamido)-3-(4-methoxyphenyl)propanoic acid (500 mg, 1.18 mmol) and (S)-2-amino-3-(cyclohex-1-en-1-yl)-1-((R)-2-methyloxiran-2-yl)propan-1-one (TFA salt, 364 mg, 1.18 mmol) in DMF (10 mL). The reaction mixture was allowed to warm to ambient temperature and stirred for 30 min. The mixture was concentrated and the residue was purified by flash column chromatography on silica gel (DCM/MeOH=50:1 to 30:1) twice to afford (2S,3R)-N-((S)-3-(cyclohex-1-en-1-yl)-1-((R)-2-methyloxiran-2-yl)-1-oxopropan-2-yl)-3-hydroxy-2-((S)-3-hydroxy-2-(2-morpholinoacetamido)propanamido)-3-(4-methoxyphenyl)propanamide (500 mg, 57% yield) as a colorless solid. 1H NMR (300 MHz, DMSO-d6): δ 7.97 (d, J=7.5 Hz, 1H), 7.86 (d, J=9.0 Hz, 1H), 7.75 (d, J=7.5 Hz, 1H), 7.26 (d, J=8.7 Hz, 2H), 6.80 (d, J=8.7 Hz, 2H), 5.61 (d, J=4.5 Hz, 1H), 5.40-5.38 (m, 1H), 5.23-5.21 (m, 1H), 5.04-5.02 (m, 1H), 4.62-4.51 (m, 1H), 4.45-4.35 (m, 2H), 3.71 (s, 3H), 3.68-3.41 (m, 6H), 3.33 (s, 1H), 3.21 (d, J=5.1 Hz, 1H), 2.97-2.80 (m, 3H), 2.39-2.21 (m, 4H), 2.11-1.71 (m, 4H), 1.56-1.40 (m, 4H), 1.26 (s, 3H), 1.28-1.22 (m, 1H). MS(EI) for C31H44N4O9, found 617.4 (MH)+.

Workup

  1. concentrationThe mixture was concentrated
  2. customthe residue was purified by flash column chromatography on silica gel (DCM/MeOH=50:1 to 30:1) twice

Sources & evidence

ORD record
ord-c3bec2ca1354493db90f730574b0513c
Source dataset
uspto-grants-2016_09
Patent number
US09434761B2

Reaction notes

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