Neprilysin inhibitors, pharmaceutical compositions comprising them and uses thereof for preparing such compositions

摘要

In one aspect, the invention relates to compounds having the formula: where R1-R6, a, b, and X are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.