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1.  Dimethyl 4-[3-(4-meth­oxy­phen­yl)-1-phenyl-1H-pyrazol-4-yl]-2,6-dimethyl-1,4-dihydro­pyridine-3,5-dicarboxyl­ate dihydrate 
In the title compound, C27H27N3O5·2H2O, the dihydro­pyridine ring adopts a flattened boat conformation. The central pyrazole ring is essentially planar [maximum deviation of 0.003 (1) Å] and makes dihedral angles of 50.42 (6) and 26.44 (6)° with the benzene rings. In the crystal, mol­ecules are linked via N—H⋯O, O—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds into two-dimensional networks parallel to the bc plane. The crystal structure is further consolidated by weak C—H⋯π inter­actions.
doi:10.1107/S1600536812027936
PMCID: PMC3394006  PMID: 22798871
2.  4-[3-(Biphenyl-4-yl)-1-phenyl-4,5-di­hydro-1H-pyrazol-5-yl]-3-(4-meth­oxy­phen­yl)-1-phenyl-1H-pyrazole dioxane monosolvate 
In the title compound, C37H30N4O·C4H8O2, the dihedral angle between the pyrazole and dihydro­pyrazole rings is 74.09 (10)°. In the crystal, the components are linked into centrosymmetric tetra­mers (two main mol­ecules and two solvent mol­ecules) by C—H⋯O hydrogen bonds. C—H⋯π and π–π [shortest centroid-centroid separation = 3.6546 (9) Å] inter­actions are also observed.
doi:10.1107/S1600536812009117
PMCID: PMC3343947  PMID: 22590028
3.  Dimethyl 2,6-dimethyl-4-(3-phenyl-1H-pyrazol-4-yl)-1,4-dihydro­pyridine-3,5-dicarboxyl­ate 
In the title compound, C20H21N3O4, the 1,4-dihydro­pyridine ring adopts a boat conformation. An intra­molecular C—H⋯O hydrogen bond generates an S(6) ring motif. The pyrazole ring makes dihedral angles of 87.81 (7) and 45.09 (7)° with the mean plane of the 1,4-dihydro­pyridine ring and the phenyl ring, respectively. In the crystal, mol­ecules are linked by N—H⋯N, N—H⋯O and C—H⋯O hydrogen bonds into a three-dimensional network.
doi:10.1107/S1600536812008306
PMCID: PMC3343908  PMID: 22589989

Results 1-3 (3)