Dichloromethane → HCID 21985551, compound
Reaction equation
[CH2:1]([NH:3][C:4]([NH:6][C:7]1[S:8][C:9]2[CH:15]=[C:14]([C:16]([OH:18])=O)[CH:13]=[CH:12][C:10]=2[N:11]=1)=[O:5])[CH3:2].Cl[CH2:20]Cl.Cl.C(N=C=N[CH2:28][CH2:29][CH2:30][N:31](C)C)C.C(N([CH2:39][CH3:40])CC)C>>[C:30]1([NH:31][C:16]([C:14]2[CH:13]=[CH:12][C:10]3[N:11]=[C:7]([NH:6][C:4]([NH:3][CH2:1][CH3:2])=[O:5])[S:8][C:9]=3[CH:15]=2)=[O:18])[CH:29]=[CH:28][CH:40]=[CH:39][CH:20]=1Participants
5
Procedure
About 0.2 g of 2-[(ethylamino)Carbonyl]amino-1,3-benzothiazole-6-carboxylic acid was dissolved into about 20 mL dichloromethane and about 0.2 mL triethylamine. Added about 1 eq of the appropriate amine followed by about 0.3 g of 1-ethyl-3-(3-dimethylaminopropyl)Carbodiimide hydrochloride then stirred at room temperature for about 12–24 hours. The solvent was removed under reduced pressure then the crude reaction mixture was purified by preparative HPLC. 1H NMR 1.10 (t, 3H), 3.2 (m, 2H), 6.76 (br s, 11), 7.10 (m, 1H), 7.36 (m, 2H), 7.70 (d, 1H), 7.79 (d, 2H), 7.97 (m, 1H), 8.5 (s, 1H), 10.23 (s, 1H), 10.9 (br s, 1H); LC/MS 2.86 min, 341 (M+1);
Workup
- customThe solvent was removed under reduced pressure
- customthe crude reaction mixture
- customwas purified by preparative HPLC
- customLC/MS 2.86 min, 341 (M+1)
Sources & evidence
- ORD record
- ord-7e0ae6c8d873495eb76902d9b21f0789
- Source dataset
- uspto-grants-2006_08
- Patent number
- US07091227B2
Reaction notes
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