Sodium Hydroxide → 1-[(3,4-Dimethoxy-benzyl)-6,7-dimethoxy-1,2,3,4-tetrahydro-naphthalen-2-yl]-pyrimidin-acetic acid

Beteiligte Stoffe

Reaktionsschritte

To a solution of 1-[(3,4-Dimethoxy-benzyl)-6,7-dimethoxy-1,2,3,4-tetrahydro-naphthalen-2-yl]-pyrimidin-acetic acid ethyl ester (1.4 g, 2.75 mmol) in a mixture dioxane/MeOH (4/3) (35 ml) was added dropwise 2M NaOH(aq) (24 ml). The resulting mixture was stirred at RT for 20 h under nitrogen. The mixture was then concentrated in vacuo, combined with water and AcOEt. The aqueous phase was acidified until pH 1 with 2N HCl, extracted three times with with CH2Cl2, the combined organic phases were dried over anhydrous MgSO4, filtered and concentrated to give the titled product (1.23 g, 93%) as yellow-green crystals.

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