Diethylamine → 2-Pyrrolidinepropanamide, 1-[(3R,4S,5S)-4-[[(2S)-2-[[(1-aminocyclopentyl)carbonyl]amino]-3-methyl-1-oxobutyl]methylamino]-3-methoxy-5-methyl-1-oxoheptyl]-I(2)-methoxy-I+/--methyl-N-[(1S)-2-phenyl-1-(2-thiazolyl)ethyl]-, (I+/-R,I(2)R,2S)-

HRID 2282827Notes

Reaction equation

HRID 2282827 reaction equation
C1C2C(COC([NH:18][C:19]3([C:24]([NH:26][C@H:27]([C:31]([N:33]([C@@H:35]([C@@H:68]([CH3:71])[CH2:69][CH3:70])[C@H:36]([O:66][CH3:67])[CH2:37][C:38]([N:40]4[CH2:44][CH2:43][CH2:42][C@H:41]4[C@H:45]([O:64][CH3:65])[C@@H:46]([CH3:63])[C:47](=[O:62])[NH:48][C@H:49]([C:57]4[S:58][CH:59]=[CH:60][N:61]=4)[CH2:50][C:51]4[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=4)=[O:39])[CH3:34])=[O:32])[CH:28]([CH3:30])[CH3:29])=[O:25])[CH2:23][CH2:22][CH2:21][CH2:20]3)=O)C3C(=CC=CC=3)C=2C=CC=1.C(NCC)C>O1CCCC1>[NH2:18][C:19]1([C:24]([NH:26][C@H:27]([C:31]([N:33]([C@@H:35]([C@@H:68]([CH3:71])[CH2:69][CH3:70])[C@H:36]([O:66][CH3:67])[CH2:37][C:38]([N:40]2[CH2:44][CH2:43][CH2:42][C@H:41]2[C@H:45]([O:64][CH3:65])[C@@H:46]([CH3:63])[C:47](=[O:62])[NH:48][C@H:49]([C:57]2[S:58][CH:59]=[CH:60][N:61]=2)[CH2:50][C:51]2[CH:52]=[CH:53][CH:54]=[CH:55][CH:56]=2)=[O:39])[CH3:34])=[O:32])[CH:28]([CH3:30])[CH3:29])=[O:25])[CH2:20][CH2:21][CH2:22][CH2:23]1

Participants

4

Reactant 2

HCID 8021DiethylamineHCID 86685730N2-[(1-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}cyclopentyl)-carbonyl]-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-oxo-3-{[(1S)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino}propyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide

Product 1

HCID 715708742-Pyrrolidinepropanamide, 1-[(3R,4S,5S)-4-[[(2S)-2-[[(1-aminocyclopentyl)carbonyl]amino]-3-methyl-1-oxobutyl]methylamino]-3-methoxy-5-methyl-1-oxoheptyl]-I(2)-methoxy-I+/--methyl-N-[(1S)-2-phenyl-1-(2-thiazolyl)ethyl]-, (I+/-R,I(2)R,2S)-Yield 96.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of #46 (500 mg, 0.504 mmol, 1 eq.) in tetrahydrofuran (8 mL, 0.06 M) was added diethylamine (4 mL). After stirring for 18 hours, the reaction mixture was concentrated in vacuo and the residue was purified by silica gel chromatography (Gradient: 0% to 10% methanol in dichloromethane) to give #47 (374 mg, 96%) as a white solid. LC-MS: m/z 769.6 [M+H+], retention time=0.70 minutes; 1H NMR (400 MHz, DMSO-d6), presumed to be a mixture of rotamers, characteristic signals: δ [8.64 (br d, J=8.4 Hz) and 8.87 (br d, J=8.6 Hz), total 1H], [8.22 (br d, J=9.4 Hz) and 8.26 (br d, J=9.4 Hz), total 1H], [7.77 (d, J=3.3 Hz) and 7.80 (d, J=3.3 Hz), total 1H], [7.63 (d, J=3.1 Hz) and 7.66 (d, J=3.3 Hz), total 1H], 7.13-7.31 (m, 5H), [5.39 (ddd, J=11.1, 8.5, 4.2 Hz) and 5.54 (ddd, J=11.7, 8.8, 4.1 Hz), total 1H], [4.53 (dd, J=9.2, 7.6 Hz) and 4.64 (dd, J=9.2, 6.6 Hz), total 1H], 3.16, 3.20, 3.21 and 3.25 (4 s, total 6H), 2.93 and 3.03 (2 br s, total 3H), [1.05 (d, J=6.8 Hz) and 1.10 (d, J=6.6 Hz), total 3H], 0.73-0.80 (m, 3H).

Workup

  1. concentrationthe reaction mixture was concentrated in vacuo
  2. customthe residue was purified by silica gel chromatography (Gradient: 0% to 10% methanol in dichloromethane)

Sources & evidence

ORD record
ord-cf3bb14e709249e3b3c7660b3e762b26
Source dataset
uspto-grants-2015_09
Patent number
US09138486B2

Reaction notes

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