The invention provides a 4 (1H-pyrazol-3-yl) piperidinyl derivative, the
structural formula of the 4 (1H-pyrazol-3-yl) piperidinyl derivative is shown as a formula I, # imgabs0 #, R1 is an aromatic ring or a substituted aromatic ring, the substituted aromatic ring is a
substituent group on the aromatic ring, and R2 is a
hydrogen atom or a
hydrogen atom or a
substituent group on the substituted aromatic ring, so that the
structural formula of the 4 (1H-pyrazol-3-yl) piperidinyl derivative is shown as a formula I; the
substituent groups are selected from C1-C6
alkyl groups, C1-C6 halogenated
alkyl groups, C1-C6 alkylamino groups, C1-C6 alkoxy groups, five-membered to six-membered heterocyclic groups,
halogen, hydroxyl groups, cyano groups,
nitryl groups, amino groups and carbonyl substituted five-membered to six-membered heterocyclic groups containing 1-2
nitrogen atoms; and R2 is H or a C1-C6
alkyl group. The 4 (1H-pyrazol-3-yl) piperidinyl derivative has MNK1 and / or MNK2 inhibitory activity, and has anti-
cancer and anti-inflammatory activity; the invention also provides a preparation method of the 4 (1H-pyrazol-3-yl) piperidinyl derivative, an application of the 4 (1H-pyrazol-3-yl) piperidinyl derivative in preparation of MNK1 and / or MNK2 inhibitors, and an application of the 4 (1H-pyrazol-3-yl) piperidinyl derivative in preparation of anti-inflammatory and anti-
cancer drugs.