(2R)-3-methoxy-2-methylpropan-1-ol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.0 mmol of 6-[(3R,4R,6S)-4-(4-chloromethyl-phenyl)-1-(toluene-4-sulfonyl)-6-triisopropylsilanyloxymethyl-piperidin-3-yloxymethyl]-4-(3-methoxy-propyl)-3,4-dihydro-2H-benzo[1,4]oxazine, 1.5 mmol of (R)-3-methoxy-2-methyl-propan-1-ol [911855-78-2] and 0.1 mmol of TBAI in 5 ml of DMF are added 1.65 mmol of NaH (55% in dispersion oil) at 0° C. The reaction mixture is allowed to warm to RT and stirred overnight, diluted with water, extracted with TBME and the organic phase is dried over Na2SO4. The organic phase is concentrated under reduced pressure and the residue is purified by flash chromatography (SiO2 60 F) to afford the title compound as a pale yellow oil. Rf=0.20 (EtOAc/heptane 1:2). extracted with TBME the organic phase is dried over Na2SO4 The organic phase is concentrated under reduced pressure the residue is purified by flash chromatography (SiO2 60 F)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: According to general method E, 1-bromo-4-chloromethyl-benzene [589-17-3] and (R)-3-methoxy-2-methyl-propan-1-ol are used to afford the title compound as a yellow oil. Rf=0.44 (EtOAc-heptane 1:6); Rt=5.29 (gradient I).

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.0 mmol of 6-[(3R,4R,6S)-4-(4-chloromethyl-phenyl)-1-(toluene-4-sulfonyl)-6-triisopropylsilanyloxymethyl-piperidin-3-yloxymethyl]-4-(3-methoxy-propyl)-3,4-dihydro-2H-benzo[1,4]oxazine, 1.5 mmol of (R)-3-methoxy-2-methyl-propan-1-ol [911855-78-2] and 0.1 mmol of TBAI in 5 ml of DMF are added 1.65 mmol of NaH (55% in dispersion oil) at 0° C. The reaction mixture is allowed to warm to RT and stirred overnight, diluted with water, extracted with TBME and the organic phase is dried over Na2SO4. The organic phase is concentrated under reduced pressure and the residue is purified by flash chromatography (SiO2 60 F) to afford the title compound as a pale yellow oil. Rf=0.20 (EtOAc/heptane 1:2). extracted with TBME the organic phase is dried over Na2SO4 The organic phase is concentrated under reduced pressure the residue is purified by flash chromatography (SiO2 60 F)