[(3S)-6-溴-2,3-二氢-1,4-苯并二恶英-3-基]甲醇

反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of [(2S)-7-bromo-2,3-dihydro-1,4-benzodioxin-2-yl]methanol (0.6 g, 2.3 mmol), sodium methanesulfinate (85%) (0.4 g, 3.4 mmol), CuI (0.043 g, 0.2 mmol), L-proline (0.052 g, 0.5 mmol) and NaOH (0.018 g, 0.5 mmol) in DMSO (3 ml) was heated under microwave radiation at 140° C. for 2 h 30 min in a nitrogen-flushed vial. The mixture was mixed with 2 other batches and water and EtOAc was added. The solution was extracted with EtOAc (3×50 ml). The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine. The resulting solution was dried (Na2SO4) and evaporated to dryness. Purification on flash column chromatography (isooctane/EtOAc) gave the title compound (1.2 g). MS m/z (rel. intensity, 70 eV) 244 (M+, bp), 213 (39), 165 (26), 134 (22), 79 (23). flushed vial The mixture was mixed with 2 other batches and water and EtOAc was added The solution was extracted with EtOAc (3×50 ml) The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine The resulting solution was dried (Na2SO4) evaporated to dryness Purification on flash column chromatography (isooctane/EtOAc)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Preparation according to Preparation 8 using 5-bromo-2-[(2R)-oxiran-2-ylmethoxy]phenyl formate (7.0 g, 25 mmol), dioxane (30 ml) and KOH (10%, 15 ml), stirred for 1 h. Purification on flash column chromatography (Isooctane/EtOAc). Crude yield: 3.7 g. MS m/z (rel. intensity, 70 eV) 245 (M+, 97) 244 (M+, bp), 189 (48), 188 (50) 79 (39). Preparation Purification on flash column chromatography (Isooctane/EtOAc)

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of [(2S)-7-bromo-2,3-dihydro-1,4-benzodioxin-2-yl]methanol (2.26 g, 9.20 mmol), phenol (0.87 g, 9.2 mmol), triphenylphosphine (2.42 g, 9.20 mmol) and THF (80 mL) is cooled in a 0° C. bath under N2. Diethylazodicarboxylate (1.50 ml, 9.5 mmol) is added, and the mixture is allowed to warm to rt overnight. The mixture is adsorbed onto SiO2 and chromatographed (Biotage 40S+SIM, (1:19) EtOAc:hexane). The product fractions are pooled and concentrated to afford 1.45 g (49%) of (2S)-7-bromo-2-(phenoxymethyl)-2,3-dihydro-1,4-benzodioxine as a clear oil. A mixture of this oil (14, 0.472 g, 1.47 mmol), (R)-3-aminoquinuclidine (0.557 g, 4.41 mmol), palladium acetate (0.083 g, 0.37 mmol), 1,3-bis(diphenylphosphino)propane (0.153 g, 0.370 mmol), and toluene (20 ml) are stirred under CO (g) in a 97° C. oil bath. The mixture is allowed to cool to rt and after 1.5 h is concentrated. The residue is partitioned between NaOH (aq) and EtOAc. The organic layer is separated, washed with brine, dried (MgSO4), filtered, and concentrated. The residue is chromatographed (Biotage 40 S, (1:10:190) NH4OH—MeOH—CHCl3). The product fractions are pooled and concentrated affording the product as a foam. The foam is taken up in EtOH, treated with fumaric acid (1.0 eq) and water (1 drop), and partially concentrated. Et2O is added and the resulting solid filtered and dried to provide 0.310 g (53%) of Example 11 as a monohydrate solid: 1H NMR (400 MHz, CD3OD) δ 7.49, 7.43, 7.25-7.35, 6.90-7.05, 6.70, 4.55-4.65, 4.45-4.55, 4.35-4.45, 4.20-4.35, 3.75-3.85, 3.20-3.50, 2.30-2.40, 2.15-2.30, 2.00-2.15, 1.85-2.00. to warm to rt overnight chromatographed (Biotage 40S+SIM, (1:19) EtOAc:hexane) concentrated

反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of [(2S)-7-bromo-2,3-dihydro-1,4-benzodioxin-2-yl]methanol (0.6 g, 2.3 mmol), sodium methanesulfinate (85%) (0.4 g, 3.4 mmol), CuI (0.043 g, 0.2 mmol), L-proline (0.052 g, 0.5 mmol) and NaOH (0.018 g, 0.5 mmol) in DMSO (3 ml) was heated under microwave radiation at 140° C. for 2 h 30 min in a nitrogen-flushed vial. The mixture was mixed with 2 other batches and water and EtOAc was added. The solution was extracted with EtOAc (3×50 ml). The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine. The resulting solution was dried (Na2SO4) and evaporated to dryness. Purification on flash column chromatography (isooctane/EtOAc) gave the title compound (1.2 g). MS m/z (rel. intensity, 70 eV) 244 (M+, bp), 213 (39), 165 (26), 134 (22), 79 (23). flushed vial The mixture was mixed with 2 other batches and water and EtOAc was added The solution was extracted with EtOAc (3×50 ml) The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine The resulting solution was dried (Na2SO4) evaporated to dryness Purification on flash column chromatography (isooctane/EtOAc)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Preparation according to Preparation 8 using 5-bromo-2-[(2R)-oxiran-2-ylmethoxy]phenyl formate (7.0 g, 25 mmol), dioxane (30 ml) and KOH (10%, 15 ml), stirred for 1 h. Purification on flash column chromatography (Isooctane/EtOAc). Crude yield: 3.7 g. MS m/z (rel. intensity, 70 eV) 245 (M+, 97) 244 (M+, bp), 189 (48), 188 (50) 79 (39). Preparation Purification on flash column chromatography (Isooctane/EtOAc)

反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of [(2S)-7-bromo-2,3-dihydro-1,4-benzodioxin-2-yl]methanol (0.6 g, 2.3 mmol), sodium methanesulfinate (85%) (0.4 g, 3.4 mmol), CuI (0.043 g, 0.2 mmol), L-proline (0.052 g, 0.5 mmol) and NaOH (0.018 g, 0.5 mmol) in DMSO (3 ml) was heated under microwave radiation at 140° C. for 2 h 30 min in a nitrogen-flushed vial. The mixture was mixed with 2 other batches and water and EtOAc was added. The solution was extracted with EtOAc (3×50 ml). The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine. The resulting solution was dried (Na2SO4) and evaporated to dryness. Purification on flash column chromatography (isooctane/EtOAc) gave the title compound (1.2 g). MS m/z (rel. intensity, 70 eV) 244 (M+, bp), 213 (39), 165 (26), 134 (22), 79 (23). flushed vial The mixture was mixed with 2 other batches and water and EtOAc was added The solution was extracted with EtOAc (3×50 ml) The combined organic phases were washed with LiCl (5%), HCl (1 N) and brine The resulting solution was dried (Na2SO4) evaporated to dryness Purification on flash column chromatography (isooctane/EtOAc)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Preparation according to Preparation 8 using 5-bromo-2-[(2R)-oxiran-2-ylmethoxy]phenyl formate (7.0 g, 25 mmol), dioxane (30 ml) and KOH (10%, 15 ml), stirred for 1 h. Purification on flash column chromatography (Isooctane/EtOAc). Crude yield: 3.7 g. MS m/z (rel. intensity, 70 eV) 245 (M+, 97) 244 (M+, bp), 189 (48), 188 (50) 79 (39). Preparation Purification on flash column chromatography (Isooctane/EtOAc)

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of [(2S)-7-bromo-2,3-dihydro-1,4-benzodioxin-2-yl]methanol (2.26 g, 9.20 mmol), phenol (0.87 g, 9.2 mmol), triphenylphosphine (2.42 g, 9.20 mmol) and THF (80 mL) is cooled in a 0° C. bath under N2. Diethylazodicarboxylate (1.50 ml, 9.5 mmol) is added, and the mixture is allowed to warm to rt overnight. The mixture is adsorbed onto SiO2 and chromatographed (Biotage 40S+SIM, (1:19) EtOAc:hexane). The product fractions are pooled and concentrated to afford 1.45 g (49%) of (2S)-7-bromo-2-(phenoxymethyl)-2,3-dihydro-1,4-benzodioxine as a clear oil. A mixture of this oil (14, 0.472 g, 1.47 mmol), (R)-3-aminoquinuclidine (0.557 g, 4.41 mmol), palladium acetate (0.083 g, 0.37 mmol), 1,3-bis(diphenylphosphino)propane (0.153 g, 0.370 mmol), and toluene (20 ml) are stirred under CO (g) in a 97° C. oil bath. The mixture is allowed to cool to rt and after 1.5 h is concentrated. The residue is partitioned between NaOH (aq) and EtOAc. The organic layer is separated, washed with brine, dried (MgSO4), filtered, and concentrated. The residue is chromatographed (Biotage 40 S, (1:10:190) NH4OH—MeOH—CHCl3). The product fractions are pooled and concentrated affording the product as a foam. The foam is taken up in EtOH, treated with fumaric acid (1.0 eq) and water (1 drop), and partially concentrated. Et2O is added and the resulting solid filtered and dried to provide 0.310 g (53%) of Example 11 as a monohydrate solid: 1H NMR (400 MHz, CD3OD) δ 7.49, 7.43, 7.25-7.35, 6.90-7.05, 6.70, 4.55-4.65, 4.45-4.55, 4.35-4.45, 4.20-4.35, 3.75-3.85, 3.20-3.50, 2.30-2.40, 2.15-2.30, 2.00-2.15, 1.85-2.00. to warm to rt overnight chromatographed (Biotage 40S+SIM, (1:19) EtOAc:hexane) concentrated