Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 2-Bromoethyl methyl ether | HCID 80972 | — |
| Reactant | Tetramethylammonium Hydroxide Pentahydrate | HCID 82620 | — |
| Reactant | HCID 136119078 | HCID 136119078 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 18932883 | HCID 18932883 | 110.5% |
Reaction Steps
To 4-(6-chloro-2,3-dihydro-indol-1-yl)-quinazolin-7-ol (125 mg, 0.42 mmol; from Example 65) in DMF (2 mL) was added H2O (50 μL), K2 CO3 (s) (116 mg, 0.84 mmol), and tetramethylammonium hydroxide pentahydrate (15 mg, 0.08 mmol) followed by 2-bromoethyl methyl ether (43 μL, 0.46 mmol). The mixture was stirred at 50° C. under N2(g) for 24 hours before another aliquot (43 μL) of 2-bromoethyl methyl ether was added. Stirring at 50° C. was continued for another 36 hours before extractive workup and chromatography analogous to that described in Example 1 followed by conversion to the HCl salt as outlined for Example 2 afforded 91 mg (61%) of product. (M.P. 213°-216° C. (dec); LC-MS: 356 (MH+); anal. RP18-HPLC RT: 4.73 min.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05736534 |
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| Source dataset | uspto-grants-1998_04 |
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| ORD ID | ord-b2d56473ce664f41b6c1f38acbe74707 |
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| Source note | uspto-grants-1998_04 |
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