| abstract |
In one aspect, the invention relates to compounds having the formula X: n n n n n n n n n n where R a , R b , R 2 , R 7 , and X are as defined in the specification, or a pharmaceutically acceptable salt thereof. The compounds described herein are prodrugs of compounds having neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising these compounds; methods of using these compounds; and processes and intermediates for preparing these compounds. |