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Cyanamide → [4-Amino-2-[4-(2-ethylamino-ethoxy)-phenylamino]-thiazol-5-yl]-benzo[1,3]dioxol-5-yl-methanone

HRID 2415282
Notes
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Reaction equation

HRID 2415282 reaction equation
[N:1]#[C:2][NH2:3].C(OC(=O)[N:10]([CH2:23][CH3:24])[CH2:11][CH2:12][O:13][C:14]1[CH:19]=[CH:18][C:17]([N:20]=[C:21]=[S:22])=[CH:16][CH:15]=1)(C)(C)C.[O:26]1[C:30]2[CH:31]=[CH:32][C:33]([C:35](=[O:38])[CH2:36]Br)=[CH:34][C:29]=2[O:28][CH2:27]1>>[NH2:1][C:2]1[N:3]=[C:21]([NH:20][C:17]2[CH:16]=[CH:15][C:14]([O:13][CH2:12][CH2:11][NH:10][CH2:23][CH3:24])=[CH:19][CH:18]=2)[S:22][C:36]=1[C:35]([C:33]1[CH:32]=[CH:31][C:30]2[O:26][CH2:27][O:28][C:29]=2[CH:34]=1)=[O:38]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 3

HCID 9864CyanamideHCID 2437771-(1,3-Dioxaindan-5-yl)-2-bromoethan-1-oneHCID 23525784Ethyl-[2-(4-isothiocyanato-phenoxy)-ethyl]-carbamic acid tert-butyl ester

Product 1

HCID 10477555[4-Amino-2-[4-(2-ethylamino-ethoxy)-phenylamino]-thiazol-5-yl]-benzo[1,3]dioxol-5-yl-methanone

Procedure

This compound was prepared from cyanamide, ethyl-[2-(4-isothiocyanato-phenoxy)-ethyl]-carbamic acid tert-butyl ester of Example 129D and 1-benzo[1,3]dioxol-5-yl-2-bromoethanone (Example 132) following a procedure similar to Example 130. The crude product was purified by HPLC using a Waters Symmetry C-18 21.2×75 mm column with the following gradient: A (0.05% trifluoroacetic acid in water), B (0.035% trifluoroacetic acid in acetonitrile, A to B gradient (0 to 50% over 7 minutes) flow rate: 20 mL/minute. The recovered product was dissolved in ethyl acetate, washed with 0.05N aqueous sodium hydroxide, and then with water. The ethyl acetate was dried (Na2SO4), concentrated, and the resulting residue triturated with ether to yield the product. Mass spectrum (ES) MH+=427.

Workup

  1. customThe crude product was purified by HPLC
  2. customto B gradient (0 to 50% over 7 minutes) flow rate: 20 mL/minute
  3. dissolutionThe recovered product was dissolved in ethyl acetate
  4. washwashed with 0.05N aqueous sodium hydroxide
  5. dry with materialThe ethyl acetate was dried (Na2SO4)
  6. concentrationconcentrated
  7. customthe resulting residue triturated with ether
  8. customto yield the product

Sources & evidence

ORD record
ord-7116cd9769444783a67edad070152096
Source dataset
uspto-grants-2004_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06818663B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes