1,2-Dichloroethane → S-3-(4-(4-(4-(4-(tert-butoxycarbonylamino)-1-methyl-1H-pyrrole-2-carboxamido)-1-methyl-1H-imidazole-2-carboxamido)-1-methyl-1H-pyrrole-2-carboxamido)-N, 1-dimethyl-1H-pyrrole-2-carboxamido)propyl ethanethioate

HRID 1968494

Reaction equation

HRID 1968494 reaction equation
[C:1]([O:5][C:6]([NH:8][C:9]1[CH:10]=[C:11]([C:15]([NH:17][C:18]2[N:19]=[C:20]([C:24]([NH:26][C:27]3[CH:28]=[C:29]([C:33]([NH:35][C:36]4[CH:37]=C(C(O)=O)[N:39]([CH3:41])[CH:40]=4)=[O:34])[N:30]([CH3:32])[CH:31]=3)=[O:25])[N:21]([CH3:23])[CH:22]=2)=[O:16])[N:12]([CH3:14])[CH:13]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(Cl)CCl.Cl.[C:50](=[O:58])([S:52][CH2:53][CH2:54]CNC)[CH3:51].[CH3:59][C:60]([N:62]([CH3:64])[CH3:63])=[O:61]>>[C:50](=[O:58])([S:52][CH2:53][CH2:54][CH2:63][N:62]([CH3:64])[C:60]([C:59]1[N:39]([CH3:41])[CH:40]=[C:36]([NH:35][C:33]([C:29]2[N:30]([CH3:32])[CH:31]=[C:27]([NH:26][C:24]([C:20]3[N:21]([CH3:23])[CH:22]=[C:18]([NH:17][C:15]([C:11]4[N:12]([CH3:14])[CH:13]=[C:9]([NH:8][C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])[CH:10]=4)=[O:16])[N:19]=3)=[O:25])[CH:28]=2)=[O:34])[CH:37]=1)=[O:61])[CH3:51]

Participants

5

Procedure

4-(4-(4-(4-(tert-butoxycarbonylamino)-1-methyl-1H-pyrrole-2-carboxamido)-1-methyl-1H-imidazole-2-carboxamido)-1-methyl-1H-pyrrole-2-carboxamido)-1-methyl-1H-pyrrole-2-carboxylic acid (256 mg, 0.42 mmol), NHS (60 mg, 0.52 mmol) and EDC (500 mg, 2.60 mmol) in 4 ml of DMA were stirred under Ar for 2 h, then S-3-(methylamino)propyl ethanethioate hydrogen chloride salt (76.5 mg, 0.42 mmol) was added and the mixture was kept stirring for 24 h, evaporated and purified on SiO2 chromatography eluted with THF/DCM (1:5 to 1:4) to afford 198 mg (64%) of the title compound. 1H NMR (DMSO) 10.21 (s, 1H), 10.09 (s, 1H), 10.06 (s, 1H), 9.08 (s, 1H), 7.76 (d, 1H, J=1.7 Hz), 7.52 (s, 1H), 7.28 (s, 1H), 7.21 (d, 1H, J=1.7 Hz), 6.97 (s, 1H), 6.87 (s, 1H), 3.98 (s, 1H), 3.86 (s, 3H), 3.75 (s, 3H), 3.73 (s, 3H), 3.66 (m, 2H), 2.85 (s, 3H), 2.60 (m, 2H), 2.01 (s, 3H), 1.45 (s, 9H); 13C NMR 173.31, 162.16, 160.05, 159.90, 157.20, 154.31, 137.88, 135.35, 124.56, 124.39, 123.51, 123.09, 121.76, 120.09, 119.83, 118.96, 115.32, 109.53, 105.58, 102.27, 79.32, 43.67, 38.13, 36.02, 35.81, 34.88, 31.84, 28.79, 28.26, 28.21, 27.01; MS m/z+ 759.2 (M+Na).

Workup

  1. customevaporated
  2. custompurified on SiO2 chromatography
  3. washeluted with THF/DCM (1:5 to 1:4)

Sources & evidence

ORD record
ord-e8e5a6e5ff8d4f51baac87e9912c1e5f
Source dataset
uspto-grants-2013_04
Patent number
US08426402B2

Linked notes

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