A substance of Formula (I) for use as a medicament for the treatment of cardiovascular diseases, wherein R is nitrogen or carbon; R1 is selected from the group consisting of a hydrogen, a trifluoromethyl, a methyloxyphenyl, a phenyl, a C1-C3 phenylalkyl, a halogenated phenyl, a halogenated C1-C3 phenylalkyl, a trifluoromethyloxy, a trifluoromethyl oxyphenyl, and a C1-C3 pyridinylalkyl; R2 is selected from the group consisting of a C1-C3 alkyl alcohol optionally substituted with a C1-C3 alkoxyphenyl, a C1-C3 N-alkylmethanamine, a C1-C3 alkoxymethyl, a C1-C3 phenylalkoxymethyl, a C1-C3 cyclopropylalkoxymethyl, and a methoxyethoxymethyl; and R3 is a phenyl or a methoxypyridinyl; and R4 is selected from the group consisting of a hydrogen, a cyano, a C1-C3 sulfonyl, a nitro, and a trifluoromethyl.