FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to new compounds of formula (I) or pharmaceutically acceptable salts thereof having mu-opioid receptor antagonist activity. In formula (I), R1 means -ORa or -C(O)NRbRc; R2, R3 and R4 mean, each independently, C1-3alkyl; R5 is specified in C1-6alkyl, cyclohexyl, -(CH2)1-3-cyclohexyl and -(CH2)1-3-phenyl; Ra, Rb and Rc mean, each independently, hydrogen; and R6 means hydrogen or C1-3alkyl; and substitutes in the starred chiral centres are found in a trans configuration. The invention also refers to a method for preparing compounds of formula (I), to intermediate compounds used in the synthesis of the compounds of formula (1) and a method for preparing them. Furthermore, the invention refers to a pharmaceutical composition comprising the compounds of formula (I), and to the use of such compounds for treating the diseases or conditions associated with mu-opioid receptor activity.
EFFECT: new pharmaceutical composition is presented.
25 cl, 19 ex
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Authors
Dates
2013-05-20—Published
2008-12-10—Filed