Diethylamine → 2-methylalanyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-tert-butoxy-1-oxo-3-phenylpropan-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 74778Notes

Reaction equation

HRID 74778 reaction equation
C1C2C(COC([NH:18][C:19]([CH3:71])([C:21]([NH:23][C@H:24]([C:28]([N:30]([C@@H:32]([C@@H:67]([CH3:70])[CH2:68][CH3:69])[C@H:33]([O:65][CH3:66])[CH2:34][C:35]([N:37]3[CH2:41][CH2:40][CH2:39][C@H:38]3[C@H:42]([O:63][CH3:64])[C@@H:43]([CH3:62])[C:44]([NH:46][C@@H:47]([CH2:55][C:56]3[CH:61]=[CH:60][CH:59]=[CH:58][CH:57]=3)[C:48]([O:50][C:51]([CH3:54])([CH3:53])[CH3:52])=[O:49])=[O:45])=[O:36])[CH3:31])=[O:29])[CH:25]([CH3:27])[CH3:26])=[O:22])[CH3:20])=O)C3C(=CC=CC=3)C=2C=CC=1.C(NCC)C>ClCCl>[CH3:20][C:19]([C:21]([NH:23][C@H:24]([C:28]([N:30]([C@@H:32]([C@@H:67]([CH3:70])[CH2:68][CH3:69])[C@H:33]([O:65][CH3:66])[CH2:34][C:35]([N:37]1[CH2:41][CH2:40][CH2:39][C@H:38]1[C@H:42]([O:63][CH3:64])[C@@H:43]([CH3:62])[C:44]([NH:46][C@@H:47]([CH2:55][C:56]1[CH:57]=[CH:58][CH:59]=[CH:60][CH:61]=1)[C:48]([O:50][C:51]([CH3:52])([CH3:53])[CH3:54])=[O:49])=[O:45])=[O:36])[CH3:31])=[O:29])[CH:25]([CH3:27])[CH3:26])=[O:22])([CH3:71])[NH2:18]

Participants

4

Reactant 2

HCID 8021DiethylamineHCID 86685745N-[(9H-fluoren-9-ylmethoxy)carbonyl]-2-methylalanyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-tert-butoxy-1-oxo-3-phenylpropan-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide

Product 1

HCID 715690022-methylalanyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-tert-butoxy-1-oxo-3-phenylpropan-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamideYield 99.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirring mixture of #122 (600 mg, 0.611 mmol, 1.00 eq.) in 15 mL of dichloromethane, diethylamine (5 mL, 50 mmol, 80 eq.) was added. The reaction was allowed to stir at room temperature for 3 hours. Reaction was concentrated in vacuo and mixture was purified by Silica Chromatography (Gradient: 0%-40% methanol in dichloromethane) producing #123 (0.46 g, 99%) as a solid. LC-MS (Protocol Q1): m/z 760.3 [M+H+] retention time=0.83 minutes. 1H NMR (400 MHz, CD3OD), δ 7.14-7.30 (m), 4.70-4.78 (m), 4.56-4.64 (m), 4.05-4.19 (m), 3.87 (dd), 3.79-3.84 (m), 3.72-3.77 (m), 3.62-3.70 (m), 3.46-3.56 (m), 3.37-3.45 (m), 3.33-3.36 (m), 3.16-3.24 (m), 3.09-3.11 (m), 2.98-3.05 (m), 2.95 (d), 2.91 (d), 2.87 (d), 2.83 (d),2.73-2.79 (m), 2.40-2.51 (m), 2.29-2.39 (m), 2.16-2.28 (m), 2.04-2.15 (m), 2.01 (s), 1.73-1.96 (m), 1.50-1.68 (m), 1.47-1.49 (m), 1.46 (s), 1.43 (s), 1.38 (s), 1.35 (d), 1.23-1.32 (m), 1.17-1.22 (m), 1.15 (d), 1.04-1.11 (m), 0.94-1.03 (m), 0.82-0.91 (m).

Workup

  1. additionwas added
  2. customReaction
  3. concentrationwas concentrated in vacuo and mixture
  4. customwas purified by Silica Chromatography (Gradient: 0%-40% methanol in dichloromethane)

Sources & evidence

ORD record
ord-6742acedb99f47019b86facc3f9c8a72
Source dataset
uspto-grants-2014_09
Patent number
US08828401B2

Reaction notes

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