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

HRID 74758Notes

Reaction equation

HRID 74758 reaction equation
[CH3:1][O:2][C@@H:3]([C@@H:33]([N:38]([CH3:46])[C:39](=[O:45])[C@H:40]([CH:42]([CH3:44])[CH3:43])[NH2:41])[C@@H:34]([CH3:37])[CH2:35][CH3:36])[CH2:4][C:5]([N:7]1[CH2:11][CH2:10][CH2:9][C@H:8]1[C@H:12]([O:31][CH3:32])[C@@H:13]([CH3:30])[C:14]([NH:16][C@H:17]([C:25]1[S:26][CH:27]=[CH:28][N:29]=1)[CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)=[S:15])=[O:6].[CH:47]1[C:59]2[CH:58]([CH2:60][O:61][C:62]([N:64]([CH3:71])[C:65]([CH3:70])([C:67](O)=[O:68])[CH3:66])=[O:63])[C:57]3[C:52](=[CH:53][CH:54]=[CH:55][CH:56]=3)[C:51]=2[CH:50]=[CH:49][CH:48]=1.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:56]1[C:57]2[CH:58]([CH2:60][O:61][C:62]([N:64]([CH3:71])[C:65]([CH3:66])([C:67]([NH:41][C@H:40]([C:39]([N:38]([C@@H:33]([C@@H:34]([CH3:37])[CH2:35][CH3:36])[C@H:3]([O:2][CH3:1])[CH2:4][C:5]([N:7]3[CH2:11][CH2:10][CH2:9][C@H:8]3[C@H:12]([O:31][CH3:32])[C@@H:13]([CH3:30])[C:14]([NH:16][C@H:17]([C:25]3[S:26][CH:27]=[CH:28][N:29]=3)[CH2:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)=[S:15])=[O:6])[CH3:46])=[O:45])[CH:42]([CH3:44])[CH3:43])=[O:68])[CH3:70])=[O:63])[C:59]3[C:51](=[CH:50][CH:49]=[CH:48][CH:47]=3)[C:52]=2[CH:53]=[CH:54][CH:55]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 4147680Fmoc-N-Me-Aib-OHHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 89573375HCID 89573375, compound

Product 1

HCID 86685735N-[(9H-fluoren-9-ylmethoxy)carbonyl]-N,2-dimethylalanyl-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-{[(1S)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino}-3-thioxopropyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

According to general procedure D, from #82 (670 mg, ≦0.818 mmol, 1 eq.), dichloromethane (5 mL, 0.16 M), N-[(9H-fluoren-9-ylmethoxy)carbonyl]-N,2-dimethylalanine (304 mg, 0.896 mmol, 1.1 eq.), HATU (372 mg, 0.978 mmol, 1.2 eq.) and diisopropylethylamine (440 μL, 2.53 mmol, 3.1 eq.) was synthesized the crude desired material, which was purified by silica gel chromatography (Gradient: 0% to 30% acetone in heptane) to give #83 (556 mg, 69% over two steps). LC-MS: m/z 994.7 [M+H+], retention time=0.69 minutes; HPLC (Protocol C): retention time=9.333 minutes (purity >98%); 1H NMR (400 MHz, DMSO-d6), presumed to be a mixture of rotamers, characteristic signals: δ [10.53 (br d, J=8 Hz) and 10.80 (br d, J=8 Hz), total 1H], 7.86-7.91 (m, 2H), [7.80 (d, J=3.3 Hz) and 7.82 (d, J=3.2 Hz), total 1H], [7.64 (d, J=3.2 Hz) and 7.68 (d, J=3.2 Hz), total 1H], 7.62-7.66 (m, 2H), 7.38-7.44 (m, 2H), 7.28-7.36 (m, 5H), 7.19-7.26 (m, 2H), 7.12-7.17 (m, 1H), [6.31 (ddd, J=11, 8, 4.5 Hz) and 6.44 (ddd, J=11, 8.5, 4.5 Hz), total 1H], [4.42 (dd, J=9, 8 Hz) and 4.48 (dd, J=8, 8 Hz), total 1H], 3.22 and 3.24 (2 s, total 3H), 3.13 and 3.17 (2 s, total 3H), 2.89 and 2.97 (2 br s, total 3H), 2.84 and 2.85 (2 s, total 3H), [1.13 (d, J=6.4 Hz) and 1.16 (d, J=6.4 Hz), total 3H].

Workup

  1. customwas purified by silica gel chromatography (Gradient: 0% to 30% acetone in heptane)
  2. customto give #83 (556 mg, 69% over two steps)
  3. additiona mixture of rotamers, characteristic signals
  4. custom[10.53 (br d, J=8 Hz) and 10.80 (br d, J=8 Hz), total 1H], 7.86-7.91 (m, 2H), [7.80 (d, J=3.3 Hz) and 7.82 (d, J=3.2 Hz), total 1H], [7.64 (d, J=3.2 Hz) and 7.68 (d, J=3.2 Hz), total 1H], 7.62-7.66 (m, 2H), 7.38-7.44 (m, 2H), 7.28-7.36 (m, 5H), 7.19-7.26 (m, 2H), 7.12-7.17 (m, 1H), [6.31 (ddd, J=11, 8, 4.5 Hz) and 6.44 (ddd, J=11, 8.5, 4.5 Hz), total 1H], [4.42 (dd, J=9, 8 Hz) and 4.48 (dd, J=8, 8 Hz), total 1H], 3.22 and 3.24 (2 s, total 3H), 3.13 and 3.17 (2 s, total 3H), 2.89 and 2.97 (2 br s, total 3H), 2.84 and 2.85 (2 s, total 3H), [1.13 (d, J=6.4 Hz) and 1.16 (d, J=6.4 Hz), total 3H]

Sources & evidence

ORD record
ord-bf1db4984e5242ee8953e81f43d607b9
Source dataset
uspto-grants-2014_09
Patent number
US08828401B2

Reaction notes

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