3-(hydroxymethyl)benzonitrile

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 3-(hydroxymethyl)benzonitrile in THF was slowly added to a refluxing solution of LiAlH4 in THF with vigorous stirring, maintained under nitrogen atmosphere. The solution was heated at reflux overnight and water was thereafter slowly added dropwise to quench the reaction (until no further evolution of H2 was apparent). The THF was evaporated under reduced pressure and ether/acidified water was added. The ether phase was discarded. The aqueous phase was washed with ether and the organic phase was discarded. NaOH was added until the pH of the aqueous phase reached pH 7. The solution was extracted with THF three times, dried over MgSO4 and evaporated under reduced pressure to furnish a slightly yellow residue which was purified by chromatography on a silica gel column using a gradient eluent starting from ethyl acetate and ending with a mixture of 1:1 ethyl acetate:MeOH), to give the intermediate in a 40% yield. maintained under nitrogen atmosphere The solution was heated at reflux overnight to quench the reaction (until no further evolution of H2 The THF was evaporated under reduced pressure and ether/ was added The aqueous phase was washed with ether NaOH was added until the pH of the aqueous phase The solution was extracted with THF three times dried over MgSO4 evaporated under reduced pressure to furnish a slightly yellow residue which was purified by chromatography on a silica gel column ending with a mixture of 1:1 ethyl acetate MeOH), to give the intermediate in a 40% yield

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Diethyl azodicarboxylate (174 mg, 1.0 mmol) was added to a solution of 2-chlorobenzenesulfonic acid 3-hydroxyphenyl ester (285 mg, 1.0 mmol), as prepared in the preceding step, 3-cyanobenzyl alcohol (133 mg, 1.0 mmol)(Yoon et al., J. Org. Chem. 38:2786-2792 (1973)), and triphenylphosphine (263 mg, 1.0 mmol) in tetrahydrofyiran (10 mL) at 0° C. The mixture was stirred at 0° C. for 2 hours and at room temperature for 3 hours. The reaction mixture was quenched with water (30 mL) and extracted with ethyl acetate (3×30 mL). The organic phase was washed with saturated NaHCO3 (2×30 mL), brine (2×30 mL) and dried over Na2SO4. The solvent was removed in vacuo the residue was purified by flash column chromatography (2:1 ethyl acetate:hexane) to give the title compound as a pale yellow oil (375 mg, 93%). 1H-NMR (300 MHz, CDCl3) δ 5.02 (s, 2 H), 6.78 (m, 2H), 6.85 (dd, 1H, J=4.2, 1.3 Hz), 7.20 (t, 1H, J=8.2 Hz), 7.38 (t, 1H, J=5.8 Hz), 7.51 (t, 1H, J=7.7 Hz), 7.59-7.68 (m, 5 H) and 7.93 (dd, 1 H, J=4.0, 0.7 Hz). The reaction mixture was quenched with water (30 mL) extracted with ethyl acetate (3×30 mL) The organic phase was washed with saturated NaHCO3 (2×30 mL), brine (2×30 mL) dried over Na2SO4 The solvent was removed in vacuo the residue was purified by flash column chromatography (2:1 ethyl acetate:hexane)

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound or its salt was prepared by a procedure similar to that described for E2 starting from 3-(hydroxymethyl)benzonitrile and 8-chloro-1-methyl-3,4-dihydro-1H-pyrimido[1,6-a]pyrimidin-6(2H)-one.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound was prepared from methyl 2-(5-hydroxypyrazol-1-yl)pyridine-4-carboxylate (PREPARATION 6) and (3-cyanophenyl)methanol according to the procedure for the preparation of Example 39, part C. [M+H] Calc'd for C18H14N4O3, 335; Found, 335.