Acetic Anhydride → HCID 59577964, compound

Participants

Reaction Steps

This material was obtained essentially following a procedure described in the literature (Jurisic et al, Synth. Comm. 1994, p 1575) from above 8-(2-chloro-benzenesulfonyl)-2-[4-(1H-tetrazol-5-ylmethyl)-phenyl]-2,8-diaza-spiro[4.5]decan-1-one (135 mg) on treatment with acetic anhydride (2 ml), in CH2Cl2 (2 ml), heating at reflux for 30 minutes and subsequent usual aqueous work-up to give the desired 8-(2-chloro-benzenesulfonyl)-2-[4-(5-methyl-[1,3,4]oxadiazol-2-ylmethyl)-phenyl]-2,8-diaza-spiro[4.5]decan-1-one (133 mg) as a light brown crystalline solid. MS (ESI): 501.1 (MH+).

Provenance & Evidence