Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethyl Sulfate | HCID 6497 | — |
| Reactant | Fumaric Acid | HCID 444972 | — |
| Reactant | HCID 18511648 | HCID 18511648 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 9807772 | HCID 9807772 | — |
Reaction Steps
A solution of 1 g (2.35 mmol) of the preceding thiourea (10.2) in 10 ml of DMF is treated at 25° C. with 245 μl of dimethyl sulfate, stirred overnight at 25° C. and then heated for 1 h at 60° C. The mixture is evaporated to dryness and the residue is recovered in the usual way and purified by flash chromatography to give 325 mg (Yd: 32%) of a light yellow oil. This oil is taken up in ethanol and salified with a solution of 80 mg of fumaric acid in the same solvent to give 340 mg (Yd: 26%) of compound of formula:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06583159B1 |
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| Source dataset | uspto-grants-2003_06 |
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| ORD ID | ord-2acb2266e66b49459f187569aeac18c6 |
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| Source note | uspto-grants-2003_06 |
|---|