Bromomethylcyclopropane → (R)-tert-butoxycarbonylamino-[4-(2-tert-butoxy-ethoxy)-phenyl]-acetic acid

Participants

Reaction Steps

Prepared by the same method as described in example 3 except that 2-chloro-4-iodoaniline was used in place of 2-chloro-4-bromoaniline in step 1 and (R)-tert-butoxycarbonylamino-(4-cyclopropylmethoxy-phenyl)-acetic acid was used in place of (R)-tert-butoxycarbonylamino-[4-(2-tert-butoxy-ethoxy)-phenyl]-acetic acid in step 2. (R)-tert-butoxycarbonylamino-[4-(2-tert-butoxy-ethoxy)-phenyl]-acetic acid was prepared by a similar method as described for the preparation of (R)-tert-butoxycarbonylamino-{4-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-acetic acid in example 48 except that cyclopropylmethyl bromide was used in place of 2-(2-bromo-ethoxy)-tetrahydropyran.

Provenance & Evidence