Reaction #1256772

Reaction equation

{trans-4-[2-(4-Isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexyl}-carbamic acid tert-butyl ester

HCl

dioxane

→

trans-4-[2-(4-Isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexylamine dihydrochloride

Solvents

CH2Cl2

Conditions

Workup

1. 1
   FiltrationAfter dilution with iPr2O the product was collected by filtration
2. 2
   Washwashed with one portion of iPr2O
3. 3
   Otherbefore drying it under high vacuum at 50° C.
4. 4
   Otherto obtain 686 mg (79%) as a white solid

Procedure

{trans-4-[2-(4-Isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexyl}-carbamic acid tert-butyl ester (930 mg, 2.2 mmol) was dissolved in CH2Cl2 (3 ml) and 4 N HCl in dioxane (10.8 ml, 43 mmol) was added. The resulting mixture was stirred 16 h at r.t. After dilution with iPr2O the product was collected by filtration and washed with one portion of iPr2O before drying it under high vacuum at 50° C. to obtain 686 mg (79%) as a white solid. m/z=330.3 ([M+H]+).

Source