Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Cyclopropanecarboxaldehyde | HCID 123114 | — |
| Reactant | Sodium triacetoxyborohydride | HCID 5049666 | — |
| Reactant | 3-(3,5-Dichloro-phenyl)-1-[4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-1-methyl-urea | HCID 22490367 | — |
| Solvent | 1,2-Dichloroethane | HCID 11 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 68530554 | HCID 68530554 | 96.6% |
Reaction Steps
To a solution of 3-(3,5-dichloro-phenyl)-1-[4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-1-methyl-urea (˜0.10 g, 0.17 mmol) in ClCH2CH2Cl (1 mL) was added cyclopropanecarboxaldehyde (0.016 mL, 0.204 mmol, 1.2 eq.). The mixture was stirred at room temperature for 15 min and then HOAc (0.01 mL, 1% v/v) was added. The reaction was stirred for a further 1 h. Na(OAc)3BH (0.054 g, 0.255 mmol, 1.5 eq.) was added and the reaction was stirred at room temperature for 12 h. It was diluted with EtOAc (10 mL) and washed with saturated NaHCO3 (10 mL) and saturated brine (10 mL). The combined organic extracts were dried over anhydrous Na2SO4, filtered and concentrated by rotary evaporation to give 1-[1-cyclopropylmethyl-4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-3-(3,5-dichloro-phenyl)-1-methyl-urea (0.094 g, 95%). Crude 1H NMR (CDCl3): δ 7.83 (d, 2H), 7.22 (m, 4H), 7.05 (s, 1H), 6.01 (br.s, 1H), 3.50 (s, 2H), 2.97 (d, 2H), 2.83 (s, 3H), 2.36 (m, 2H), 2.27 (m, 2H), 2.09 (m, 2H), 0.91 (br.m, 1H), 0.58 (d, 2H), 0.15 (d, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06887889B2 |
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| Source dataset | uspto-grants-2005_05 |
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| ORD ID | ord-01db5e57f6f04d28a2d7cf3780e005f7 |
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| Source note | uspto-grants-2005_05 |
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