1. The compound of the formula: or a pharmaceutically acceptable salt thereof, wherein: A is a cyclic C-hydrocarbyl or a 4-7 membered heterocycle； D is a 4-7 membered heterocycle； each R independently is —OR, —N (R), - C (O) R, —C (O) OR, —C (O) N (R), —N (R) C (O) OR, cyano, halogen or optionally substituted C-hydrocarbyl or 2-12 membered heterocarbyl, where optional substitution means optional substitution with one or more R substituents； each R independently represents —OR, —N (R), —C (O) R, —C (O) OR, —C (O) N (R), —N (R) C (O) OR, cyano or halogen； each R is independently is hydrogen or an optionally substituted C-hydrocarbyl or 2-12 membered heterocarbyl, where optional substitution means optional substitution with one or more substituents selected from cyano, halogen or hydroxyl； each R is independently —OR, —N (R), —C ( O) R, -C (O) OR, -C (O) N (R), -N (R) C (O) OR, cyano, halogen or optionally substituted C-hydrocarbyl or 2-12 membered heterocarbyl, where optional substitution means optional substitution with one or more substituents selected from amino, cyano, halogen, hydr xylitol or R； each independently represents hydrogen or optionally substituted Cgidrokarbil or 2-12 membered heterocarbyl, where optional substitution is optionally substituted with one or more substituents selected from amino, cyano, hydroxyl or halogen； n has a value of 1-3； and m has a value of 0-3； under conditions that: 1) R is different from hydroxyl or optionally substituted phenyl or pyridinyl； 2) when D is diazapine and A is pyridinyl, R is different from —C (O) O-tert-butyl； 3) when D is piperazine, A is phenyl and R is chlorine, R is1. Соединение формулы:или его фармацевтически приемлемая соль, где:A представляет собой циклический Cгидрокарбил или 4-7-членный гетероцикл；D представляет собой 4-7-членный гетероцикл；каждый Rнезависимо представляет собой -OR, -N(R), -C(O)R, -C(O)OR, -C(O)N(R), -N(R)C(O)OR, циано, галоген или необязательно замещенный Cгидрокарбил или 2-12-членный
