tert-Butyl 3-(4-(2-(4-(2-isopropylthiazole-4-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecan-9-yl)ethyl)phenethoxy)propanoate → 3-(3-Cyanophenethoxy)propanoic acid

Participants

Reaction Steps

Prepared by the method of Example 1, step e using tert-butyl 3-(3-cyanophenethoxy)propanoate [Examples 81-175, step a] (7.0 g) in place of tert-butyl 3-(4-(2-(4-(2-isopropylthiazole-4-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecan-9-yl)ethyl)phenethoxy)propanoate. After concentration in-vacuo, the residue was azeotroped with toluene (×2) to afford the subtitled compound. Yield 2.8 g. m/z 218 (M−H)− (APCI).

Provenance & Evidence