N-Hydroxysuccinimide → N-{4-[(2,5-dioxopyrrolidin-1-yl)oxy]-4-oxobutyl}-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S,3S)-1-(benzyloxy)-1-oxo-3-phenylbutan-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 882627Notes

Reaction equation

HRID 882627 reaction equation
[C:1]([CH2:4][CH2:5][CH2:6][N:7]([CH3:66])[C@H:8]([C:12]([NH:14][C@H:15]([C:19]([N:21]([C@@H:23]([C@@H:62]([CH3:65])[CH2:63][CH3:64])[C@H:24]([O:60][CH3:61])[CH2:25][C:26]([N:28]1[CH2:32][CH2:31][CH2:30][C@H:29]1[C@H:33]([O:58][CH3:59])[C@@H:34]([CH3:57])[C:35]([NH:37][C@@H:38]([C@H:49]([C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=1)[CH3:50])[C:39]([O:41][CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)=[O:40])=[O:36])=[O:27])[CH3:22])=[O:20])[CH:16]([CH3:18])[CH3:17])=[O:13])[CH:9]([CH3:11])[CH3:10])([OH:3])=[O:2].O[N:68]1[C:72](=[O:73])[CH2:71][CH2:70][C:69]1=[O:74].Cl.CN(C)CCCN=C=NCC>ClCCl>[O:74]=[C:69]1[CH2:70][CH2:71][C:72](=[O:73])[N:68]1[O:2][C:1](=[O:3])[CH2:4][CH2:5][CH2:6][N:7]([CH3:66])[C@H:8]([C:12]([NH:14][C@H:15]([C:19]([N:21]([C@@H:23]([C@@H:62]([CH3:65])[CH2:63][CH3:64])[C@H:24]([O:60][CH3:61])[CH2:25][C:26]([N:28]1[CH2:32][CH2:31][CH2:30][C@H:29]1[C@H:33]([O:58][CH3:59])[C@@H:34]([CH3:57])[C:35]([NH:37][C@@H:38]([C@H:49]([C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=1)[CH3:50])[C:39]([O:41][CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)=[O:40])=[O:36])=[O:27])[CH3:22])=[O:20])[CH:16]([CH3:18])[CH3:17])=[O:13])[CH:9]([CH3:11])[CH3:10]

Participants

5

Reactant 3

HCID 80170N-Hydroxysuccinimide2×HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride2×HCID 56952185N-(3-carboxypropyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S,3S)-1-(benzyloxy)-1-oxo-3-phenylbutan-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide2×

Product 1

HCID 86678378N-{4-[(2,5-dioxopyrrolidin-1-yl)oxy]-4-oxobutyl}-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S,3S)-1-(benzyloxy)-1-oxo-3-phenylbutan-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 6344DichloromethaneSolvent

Procedure

16 mg (17 μmol) of N-(3-carboxypropyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S,3S)-1-(benzyloxy)-1-oxo-3-phenylbutan-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 70) were dissolved in 2 ml of dichloromethane and admixed with 2.6 mg (23 mmol) of 1-hydroxypyrrolidine-2,5-dione and then with 4 mg (21 μmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride. After stirring at RT for 2 h, the same amounts of 1-hydroxypyrrolidine-2,5-dione and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride were added once again. Then stirring at RT overnight, the reaction mixture was concentrated under reduced pressure. The remaining residue was purified by means of preparative HPLC. After lyophilization, 10 mg (56% of theory) of the title compound were obtained.

Workup

  1. stirringThen stirring at RT overnight
  2. concentrationthe reaction mixture was concentrated under reduced pressure
  3. customThe remaining residue was purified by means of preparative HPLC

Sources & evidence

ORD record
ord-56fd85f990724082aeee943b58d85d18
Source dataset
uspto-grants-2015_03
Patent number
US08992932B2

Reaction notes

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