1,2-Dichloroethane → N-(tert.-butoxycarbonyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-(benzylamino)-1-oxo-3-phenylpropane-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide

HRID 879250Notes

Reaction equation

HRID 879250 reaction equation
[C:1]([O:5][C:6]([N:8]([CH3:59])[C@H:9]([C:13]([NH:15][C@H:16]([C:20]([N:22]([C@@H:24]([C@@H:55]([CH3:58])[CH2:56][CH3:57])[C@H:25]([O:53][CH3:54])[CH2:26][C:27]([N:29]1[CH2:33][CH2:32][CH2:31][C@H:30]1[C@H:34]([O:51][CH3:52])[C@@H:35]([CH3:50])[C:36]([NH:38][C@H:39]([C:47](O)=[O:48])[CH2:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1)=[O:37])=[O:28])[CH3:23])=[O:21])[CH:17]([CH3:19])[CH3:18])=[O:14])[CH:10]([CH3:12])[CH3:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:60]([NH2:67])[C:61]1[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=1.C(N(CC)C(C)C)(C)C.C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl>CN(C=O)C>[C:1]([O:5][C:6]([N:8]([CH3:59])[C@H:9]([C:13]([NH:15][C@H:16]([C:20]([N:22]([C@@H:24]([C@@H:55]([CH3:58])[CH2:56][CH3:57])[C@H:25]([O:53][CH3:54])[CH2:26][C:27]([N:29]1[CH2:33][CH2:32][CH2:31][C@H:30]1[C@H:34]([O:51][CH3:52])[C@@H:35]([CH3:50])[C:36]([NH:38][C@@H:39]([CH2:40][C:41]1[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=1)[C:47]([NH:67][CH2:60][C:61]1[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=1)=[O:48])=[O:37])=[O:28])[CH3:23])=[O:21])[CH:17]([CH3:18])[CH3:19])=[O:14])[CH:10]([CH3:12])[CH3:11])=[O:7])([CH3:2])([CH3:4])[CH3:3]

Participants

7

Reactant 5

HCID 111,2-DichloroethaneHCID 7504BenzylamineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 71111548t-Boc-N-MMAF2×

Product 1

HCID 89428507N-(tert.-butoxycarbonyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-(benzylamino)-1-oxo-3-phenylpropane-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

36 mg (43 μmol) of N-(tert.-butoxycarbonyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(1S)-1-carboxy-2-phenylethyl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (intermediate 39) and 4.6 mg (43 μmol) of benzyl amine were absorbed in 5 ml of DMF, mixed with 7.5 μl (88 μmol) of N,N-diisopropylethylamine, 10 mg (65 μmol) of HOBt as well as 10 mg (52 μmol) of EDC, and then stirred over night at RT. Then, the reaction composition was evaporated and the residue purified by means of preparative HPLC. This way, 29 mg (73% o. th.) of Fmoc protected intermediate of N-(tert.-butoxycarbonyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-(benzylamino)-1-oxo-3-phenylpropane-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.

Workup

  1. customThen, the reaction composition was evaporated
  2. customthe residue purified by means of preparative HPLC

Sources & evidence

ORD record
ord-429820342db5437db74c0dc8eed142c1
Source dataset
uspto-grants-2015_03
Patent number
US08987209B2

Reaction notes

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