[3-((R)-1-{5-[5-chloro-3-fluoro-2-(2-methyl-2H-tetrazol-5-yl)-phenyl]-3-fluoro-pyridin-2-yl}-ethylcarbamoyl)-oxetan-3-yl]-carbamic acid 9H-fluoren-9-ylmethyl ester → 3-Amino-oxetane-3-carboxylic acid ((R)-1-{5-[5-chloro-3-fluoro-2-(2-methyl-2H-tetrazol-5-yl)-phenyl]-3-fluoro-pyridin-2-yl}-ethyl)-amide

Participants

Reaction Steps

The title compound was prepared in analogy to intermediate 1 synthesizing N—((R)-1-{5-[5-chloro-3-fluoro-2-(2-methyl-2H-tetrazol-5-yl)-phenyl]-3-fluoro-pyridin-2-yl}-ethyl)-acetamide in step A (using 5-(2-bromo-4-chloro-6-fluoro-phenyl)-2-methyl-2H-tetrazole (intermediate 11) instead of 3-(2-bromo-4-chloro-6-fluoro-phenyl)-5-methyl-[1,2,4]oxadiazole), (R)-1-{5-[5-chloro-3-fluoro-2-(2-methyl-2H-tetrazol-5-yl)-phenyl]-3-fluoro-pyridin-2-yl}-ethylamine in step B and [3-((R)-1-{5-[5-chloro-3-fluoro-2-(2-methyl-2H-tetrazol-5-yl)-phenyl]-3-fluoro-pyridin-2-yl}-ethylcarbamoyl)-oxetan-3-yl]-carbamic acid 9H-fluoren-9-ylmethyl ester in step C. White solid. MS: 450.2 [M+H]+.

Provenance & Evidence