3,4-Dimethylphenyl isocyanate → (R)-4-[3-((S)-4-Hydroxy-6-aza-spiro[2.5]oct-6-yl)-propyl]-2-methyl-5-oxo-[1,4]diazepane-1-carboxylic acid (3,4-dimethyl-phenyl)-amide

Participants

Reaction Steps

In analogy to the procedure described in example 58F, (R)-4-[3-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-propyl]-2-methyl-[1,4]diazepan-5-one dihydrochloride (example 58E) and 3,4-dimethylphenyl isocyanate (without addition of 0.1 eq. of 3,4-dimethylphenyl isocyanate) gave 0.035 g (32%) of the title compound as white foam. MS: 443.3 (MH+).

Provenance & Evidence