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fumarate salt, crystalline form i of said salt, methods for preparing them, pharmaceutical composition comprising the salt and crystalline form i and use of the fumarate salt, crystalline form i and the pharmaceutical composition
fumarate salt, crystalline form i of said salt, methods for preparing them, pharmaceutical composition comprising the salt and crystalline form i and use of the fumarate salt, crystalline form i and the pharmaceutical composition
with respect to an opioid receptor agonist (1s, 4s) -4- ethoxy-n- (2 - ((r) -9- (pyridin-2-yl) -6-oxaspiro [4.5] deca-9 -yl) ethyl) -1,2,3,4- tetrahydronaphthalen-1-amine, a crystalline form of the fumarate salt thereof and a method for preparing and applying it.
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