Diisopropylethylamine → methyl N-{(2R,3R)-3-[(2S)-1-{(3R,4S,5S)-4-[{N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-valyl}(methyl)amino]-3-methoxy-5-methylheptanoyl]pyrrolidin-2-yl]-3-methoxy-2-methylpropanethioyl}-L-phenylalaninate

HRID 74756Notes

Reaction equation

HRID 74756 reaction equation
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@H:19]([C:23]([N:25]([CH3:38])[C@@H:26]([C@@H:34]([CH3:37])[CH2:35][CH3:36])[C@H:27]([O:32][CH3:33])[CH2:28][C:29](O)=[O:30])=[O:24])[CH:20]([CH3:22])[CH3:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.Cl.[CH3:40][O:41][C@@H:42]([C@@H:60]1[CH2:64][CH2:63][CH2:62][NH:61]1)[C@@H:43]([CH3:59])[C:44]([NH:46][C@H:47]([C:55]([O:57][CH3:58])=[O:56])[CH2:48][C:49]1[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=1)=[S:45].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C>ClCCl>[CH:10]1[C:11]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@H:19]([C:23]([N:25]([CH3:38])[C@@H:26]([C@@H:34]([CH3:37])[CH2:35][CH3:36])[C@H:27]([O:32][CH3:33])[CH2:28][C:29]([N:61]3[CH2:62][CH2:63][CH2:64][C@H:60]3[C@H:42]([O:41][CH3:40])[C@@H:43]([CH3:59])[C:44]([NH:46][C@H:47]([C:55]([O:57][CH3:58])=[O:56])[CH2:48][C:49]3[CH:50]=[CH:51][CH:52]=[CH:53][CH:54]=3)=[S:45])=[O:30])=[O:24])[CH:20]([CH3:22])[CH3:21])=[O:17])[C:13]3[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=3)[C:6]=2[CH:7]=[CH:8][CH:9]=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 86685719(3R,4S,5S)-4-((S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoic acidHCID 131731848methyl N-{(2R,3R)-3-methoxy-2-methyl-3-[(2S)-pyrrolidin-2-yl]propanethioyl}-L-phenylalaninate, hydrochloride salt

Product 1

HCID 89573394methyl N-{(2R,3R)-3-[(2S)-1-{(3R,4S,5S)-4-[{N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-valyl}(methyl)amino]-3-methoxy-5-methylheptanoyl]pyrrolidin-2-yl]-3-methoxy-2-methylpropanethioyl}-L-phenylalaninate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

According to general procedure D, from #@5 (260 mg, 0.648 mmol, 1 eq.), #39 (340 mg, ≦0.629 mmol, 1 eq.), dichloromethane (10 mL, 0.065 M), HATU (296 mg, 0.778 mmol, 1.2 eq.) and diisopropylethylamine (339 μL, 1.94 mmol, 3 eq.) was synthesized the crude desired material, which was purified by silica gel chromatography (Gradient: 0% to 40% acetone in heptane) to give #76 (466 mg, 83% over two steps) as a solid. LC-MS: m/z 871.5 [M+H+], 893.5 [M+Na+], retention time=1.10 minutes; HPLC (Protocol C): retention time=9.249 minutes (purity >99%); 1H NMR (400 MHz, DMSO-d6), presumed to be a mixture of rotamers, characteristic signals: δ [10.19 (br d, J=7.4 Hz) and 10.49 (br d, J=7.8 Hz), total 1H], 7.89 (br d, J=7.4 Hz, 2H), 7.68-7.75 (m, 2H), 7.54-7.60 (m, 1H), 7.41 (br dd, J=7.4, 7.4 Hz, 2H), 7.28-7.36 (m, 2H), 7.15-7.28 (m, 5H), [5.20 (ddd, J=10.9, 7.3, 4.4 Hz) and 5.34-5.43 (m), total 1H], 3.65 and 3.69 (2 s, total 3H), 3.24 and 3.25 (2 s, total 3H), 3.17 (br s, 3H), 2.93 and 2.98 (2 br s, total 3H), [1.15 (d, J=6.6 Hz) and 1.18 (d, J=6.6 Hz), total 3H].

Workup

  1. customwas purified by silica gel chromatography (Gradient: 0% to 40% acetone in heptane)
  2. customto give #76 (466 mg, 83% over two steps) as a solid
  3. additiona mixture of rotamers, characteristic signals

Sources & evidence

ORD record
ord-73c55776dd6f45dca8a635e8dd8f661d
Source dataset
uspto-grants-2014_09
Patent number
US08828401B2

Reaction notes

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