Vitamin D receptor modulators

A compound or a pharmaceutically acceptable salt thereof represented by a formula below:

• wherein
• R and R′ are independently C1-C5 alkyl, or together R and R′ form a carbocyclic ring having from 3 to 8 carbon atoms;
• RP3 is hydrogen, or C1-C5 alkyl;
• (LP1) is —(CH2)m—O—;
• (LP2) is
• is where m is 0, 1, or 2;
• ZP is a branched C3-C5 alkyl or 1-ethyl-1-hydroxypropyl;
• ZTB is selected from
• —O—SO2—(C1-C5 alkyl,)
• —CO2H,
• —CO2Me,
• —CO2Et,
• —C(O)NH2,
• —C(O)NMe2,
• —C(O)NH—CH2—C(O)OH,
• —C(O)NH—CH2—C(O)OMe,
• —C(O)NH—CH2—C(O)OEt,
• —C(O)NH—CH2—C(O)OiPr,
• —C(O)NH—CH2—C(O)OtBu,
• —C(O)NH—CH(Me)-C(O)OH,
• —C(O)NH—CH(Me)-C(O)OMe,
• —C(O)NH—CH(Me)-C(O)OEt,
• —C(O)NH—CH(Me)-C(O)iPr,
• —C(O)NH—CH(Me)-C(O)tBu,
• —C(O)NH—CH(Et)-C(O)OH,
• —C(O)NH—C(Me)2-C(O)OH,
• —C(O)NH—C(Me)2-C(O)OMe,
• —C(O)NH—C(Me)2-C(O)OEt,
• —C(O)NH—C(Me)2-C(O)iPr,
• —C(O)NH—C(Me)2-C(O)tBu,
• provided that -(LTB)-ZTB is substituted at either the 5 or 6 position of the benzothiophene ring.