Hydrochloric Acid → (1-{6-[5-(4'-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-5-aza-spiro[2.4]heptane-5-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

Participants

Reaction Steps

(1-{6-[5-(4′-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-5-aza-spiro[2.4]heptane-5-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (Example DW) was prepared in a similar fashion to (1-{2-[5-(4′-{2-[2-Hydroxy-1-(2-methoxycarbonylamino-3-methyl-butyrylamino)-ethyl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester, replacing the oxazolidine derived carboxylic acid with the corresponding 4-cyclopropyl-proline derivative and using HCl in dioxane for the Boc deprotection.

Provenance & Evidence