FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to a compound presented by formula (1)
,
wherein each of R1 and R2 substitutes independently represents a hydrogen atom or a linear alkyl group containing 1-3 carbon atoms; R3 means an alkyl group containing 1-4 carbon atoms, or its pharmaceutically acceptable salt; the invention also refers to a medicinal product containing this compound, as EP4 antagonist.
EFFECT: producing the compound applicable for preventing and/or treating immune diseases, cardiovascular diseases, cardiac diseases, respiratory diseases, ocular diseases, renal diseases, hepatic diseases, bone diseases, gastrointestinal ulcers, ulcerative colitis or Crohn's disease, as well as neurological diseases, skin diseases, etc.
29 cl, 8 tbl, 26 dwg, 26 ex
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