1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 89705350, compound

HRID 929021Notes

Reaction equation

HRID 929021 reaction equation
[F:1][C:2]1[C:7]2[N:8]=[CH:9][S:10][C:6]=2[CH:5]=[C:4]([C:11]([OH:13])=O)[C:3]=1[NH:14][C:15]1[CH:20]=[CH:19][C:18]([Br:21])=[CH:17][C:16]=1[Cl:22].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.[CH3:44][C:45]1([CH3:53])[O:49][CH:48]([CH2:50][O:51][NH2:52])[CH2:47][O:46]1.[NH4+].[Cl-]>C(Cl)Cl>[CH3:44][C:45]1([CH3:53])[O:49][CH:48]([CH2:50][O:51][NH:52][C:11]([C:4]2[C:3]([NH:14][C:15]3[CH:20]=[CH:19][C:18]([Br:21])=[CH:17][C:16]=3[Cl:22])=[C:2]([F:1])[C:7]3[N:8]=[CH:9][S:10][C:6]=3[CH:5]=2)=[O:13])[CH2:47][O:46]1

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 25517Ammonium ChlorideHCID 757711-HydroxybenzotriazoleHCID 10240948O-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]hydroxylamineHCID 89704897HCID 89704897, compound

Product 1

HCID 89705350HCID 89705350, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 4-fluoro-5-((4-bromo-2-chlorophenyl)amino)benzo[d]thiazole-6-carboxylic acid (482 mg, 1.20 mmol) in CH2Cl2 (10 mL) was added HOBt (254 mg, 1.63 mmol) followed by EDCI (314 mg, 1.63 mmol). The mixture was stirred for 1 h and O-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)hydroxylamine (238 mg, 1.62 mmol) was added. After stirring for 4 h at ambient temperature, the reaction was treated with saturated NH4Cl (aq.). The resultant mixture was extracted with CH2Cl2 (30 mL×3). The combined organic extracts was washed by water (30 mL) and brine (30 mL) sequentially, dried over Na2SO4, filtered and concentrated in vacuo. The crude product (490 mg) was used directly in the next step without further purification.

Workup

  1. stirringAfter stirring for 4 h at ambient temperature
  2. extractionThe resultant mixture was extracted with CH2Cl2 (30 mL×3)
  3. washThe combined organic extracts was washed by water (30 mL) and brine (30 mL) sequentially
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product (490 mg) was used directly in the next step without further purification

Sources & evidence

ORD record
ord-d882bab3ff104849b56ff3d8a3a33b9f
Source dataset
uspto-grants-2016_03
Patent number
US09290468B2

Reaction notes

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