abstract |
Disclosed herein are compositions and methods of treating osteroporosis, bone fracture, bone loss, and increasing bone density by administration of compounds of formula (I) or compositions comprising a compound of formula (I) and a pharmaceutically acceptable carrier, wherein L 1 , L 2 , L 4 , R 1 , R 4 , R 5 , R 6 , and s are as defined in the specification. |