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

HRID 2282821Notes

Reaction equation

HRID 2282821 reaction equation
Cl.[CH3:2][O:3][C@@H:4]([C@@H:18]1[CH2:22][CH2:21][CH2:20][NH:19]1)[C@@H:5]([CH3:17])[C:6](=[S:16])[NH:7][CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.[CH:23]1[C:35]2[CH:34]([CH2:36][O:37][C:38]([N:40]([CH3:68])[C@H:41]([C:45]([NH:47][C@H:48]([C:52]([N:54]([C@@H:56]([C@@H:64]([CH3:67])[CH2:65][CH3:66])[C@H:57]([O:62][CH3:63])[CH2:58][C:59](O)=[O:60])[CH3:55])=[O:53])[CH:49]([CH3:51])[CH3:50])=[O:46])[CH:42]([CH3:44])[CH3:43])=[O:39])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[C:27]=2[CH:26]=[CH:25][CH:24]=1.C(N(C(C)C)CC)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>ClCCl.CN(C)C=O>[CH:23]1[C:35]2[CH:34]([CH2:36][O:37][C:38]([N:40]([CH3:68])[C@H:41]([C:45]([NH:47][C@H:48]([C:52]([N:54]([C@@H:56]([C@@H:64]([CH3:67])[CH2:65][CH3:66])[C@H:57]([O:62][CH3:63])[CH2:58][C:59]([N:19]3[CH2:20][CH2:21][CH2:22][C@H:18]3[C@H:4]([O:3][CH3:2])[C@@H:5]([CH3:17])[C:6]([NH:7][CH2:8][CH2:9][C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)=[S:16])=[O:60])[CH3:55])=[O:53])[CH:49]([CH3:51])[CH3:50])=[O:46])[CH:42]([CH3:44])[CH3:43])=[O:39])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[C:27]=2[CH:26]=[CH:25][CH:24]=1

Participants

7

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 60042710(5S,8S,11S,12R)-11-((S)-sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oic acidHCID 131731847(2R,3R)-3-methoxy-2-methyl-N-(2-phenylethyl)-3-[(2S)-pyrrolidin-2-yl]propanethioamide, hydrochloride salt

Product 1

HCID 86685728N-[(9H-fluoren-9-ylmethoxy)carbonyl]-N-methyl-L-valyl-N-{(3R,4S,5S)-3-methoxy-1-[(2S)-2-{(1R,2R)-1-methoxy-2-methyl-3-[(2-phenylethyl)amino]-3-thioxopropyl}pyrrolidin-1-yl]-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamideYield 73.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent2×

Procedure

To a mixture of #23 (337 mg, 0.983 mmol, 1 eq.) in dichloromethane (8 mL, 0.1 M) and N,N-dimethylformamide (1 mL) were added #8 (564 mg, 0.885 mmol, 0.9 eq.), diisopropylethylamine (383 mg, 2.95 mmol, 3 eq.) and HATU (472 mg, 1.18 mmol, 1.2 eq.). After 2 hours, the mixture was diluted with dichloromethane, washed sequentially with 0.1 M aqueous hydrochloric acid and with brine, dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by reverse phase chromatography (Method G) to give #35 (600 mg, 66%); LC-MS: m/z 926.6 [M+H+], retention time=1.16 minutes; 1H NMR (400 MHz, DMSO-d6), presumed to be a mixture of rotamers, characteristic signals: δ [9.94 (br t, J=5 Hz) and 10.16-10.23 (br m), total 1H], 7.90 (d, J=7.2 Hz, 2H), [7.71 (br d, J=7 Hz) and 8.06 (br d, J=8 Hz), total 1H], 7.60-7.65 (m, 2H), 7.41 (br dd, J=7, 7 Hz, 2H), 7.15-7.36 (m, 7H), 3.29 (s, 3H), 1.16-1.22 (m, 3H).

Workup

  1. washwashed sequentially with 0.1 M aqueous hydrochloric acid and with brine
  2. dry with materialdried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by reverse phase chromatography (Method G)

Sources & evidence

ORD record
ord-f9c258a42c15474bbd9ccc82ae009eba
Source dataset
uspto-grants-2015_09
Patent number
US09138486B2

Reaction notes

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