organic compounds
N-(4-{4-[2-(Trifluoromethoxy)phenyl]piperazin-1-yl}butyl)thiophene-2-carboxamide dihydrate
aSchool of Chemistry and Chemical Engineering, Institute of Pharmaceutical Engineering, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: cpu_cj@hotmail.com
In the title compound, C20H24F3N3O2S·2H2O, a dopamine D3 ligand, the piperazine ring adopts a chair conformation while the piperazine and benzene rings form a dihedral angle of 47.71 (6)°. In the crystal, molecules are linked by intermolecular N—H⋯O and O—H⋯O hydrogen bonds. In the molecular structure, the F atoms of the trifluoromethyl group are disordered over two sites with occupancies of 0.69 (11) and 0.31 (11).
Related literature
For the synthesis of the title compound and its derivatives, see: Leopoldo et al. (2002); Robarge et al. (2001). For the pharmacological activity of the dopamine D3 ligand, see: Pilla et al. (1999); Garcia-Ladona & Cox (2003); Wood et al. (2000); Luedtke & Mach (2003). For structure–activity relationships for the dopamine D3 receptor, see: Bettinetti et al. (2002); Leopoldo et al. (2002); Dutta et al., (2004).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1999); cell SAINT (Bruker, 1999); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S160053681005155X/bg2379sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681005155X/bg2379Isup2.hkl
All chemicals used(reagent grade) were commercially available. 4-(4-(2-(trifluoromethoxy)phenyl)piperazin-1-yl)butan-1-amine 0.64 g (2mmol) was dissovled by 20 mL dichloromethane, then K2CO3 2 g (15mmol) and thiophene-2-carbonyl chloride 0.29 g (2mmol) were added under ice-cooling and stirred for 30 min. The mixture was filtered, and evaporated the dissolvent.Purification of the crude product by a column chramotagraphy (v:v chloroform: methanol = 40:1) afforded the title compound (0.56g, 65.2%) Crystals suitable for X-ray diffraction were obtained by slow evaporation of an ethanol solution at room temperature. m.p. 358–359 K;1H-NMR(CDCl3, 300MHz), δ(ppm): 1.63-1.69(m, 4H), 2.47(t, 2H, J=6.93Hz), 2.61(t, 4H, J=4.74Hz), 3.09(t, 4H, J=4.82Hz), 3.47(q, 2H, J=6.26Hz), 6.36(br, 1H), 6.98-7.07(m, 3H), 7.18-7.26(m, 2H), 7.43-7.51(m, 2H); 13C-NMR(CDCl3, 300MHz), δ(ppm): 24.3, 27.6, 27.7, 40.0, 50.7, 50.8, 50.9, 53.4, 58.0, 119.9, 122.0, 122.3, 122.4, 122.5, 122.6, 127.5, 127.5, 127.9, 129.5, 139.2, 142.4, 145.1, 162.0; ESI-MS m/z: 428.2[M+H]+; Anal. calcd for C20H24F3N3O2S(%): C 56.19, H 5.66, N 9.83; Found: C 56.25, H 5.70, N 9.83.
All H atoms were placed in calculated positions, with O–H = 0.85 Å, N–H = 0.86 Å, and C–H = 0.93 or 0.97 Å, and included in the final cycles of
using a riding model, with Uiso(H) = 1.2Ueq(parent atom). The fluorine atoms of trifluoromethyl group is disordered over two sites with occupancies of 0.69 (11) and 0.31 (11). Due to the lack of any strong anomalous dispersor making absolute determination feasible, Friedel pairs were merged, thus leading to a rather poor data to parameters ratio.The title compound was designed as a dopamine D3 ligand. The dopamine D3 receptor is recognized as a potential therapeutic target for the treatment of various neurological and psychiatric disorders, such as schizophrenia, Parkinson's disease and drug abuse (Pilla et al., 1999; Garcia-Ladona et al., 2003; Wood et al., 2000; Luedtke et al., 2003). Study of structure-activity relationships for dopamine D3 receptor are helpfull to rationalize the discovery of super-potent and highly selective dopamine D3 receptor antagonists and partial agonists (Bettinetti et al., 2002; Leopoldo et al., 2002; Dutta et al., 2004). We report here the
of the title compound, which was synthesized by the two-component reaction of 4-(4-(2-(trifluoromethoxy) phenyl) piperazin-1-yl)butan-1-amine and thiophene-2-carbonyl chloride. In the title compound, the piperazine ring (C10/C11/C12/C13/N2/N3) adopts a chair conformation, atoms C10, C11, C12 and C13 are coplanar, with atoms N2 and N3 deviating from the plane by -0.661 (5) and 0.679 (5) Å, respectively (Fig. 1).The dihedral angle between the C10/C11/C12/C13 plane and the C15/C16/C17/C18/C19/C20 plane is 47.71 (6) °.The molecules are linked by N1–H1···O3 intermolecular hydrogen bonds (Table 1, Fig. 2). In the molecular structure, the fluorine atoms of trifluoromethyl group is disordered over two sites with occupancies of 0.69 (11) and 0.31 (11).For the synthesis of the title compound and its derivatives, see: Leopoldo et al. (2002); Robarge et al. (2001). For the pharmacological activity of the dopamine D3 ligand, see: Pilla et al. (1999); Garcia-Ladona et al. (2003); Wood et al. (2000); Luedtke et al. (2003). For structure–activity relationships for the dopamine D3 receptor, see: Bettinetti et al. (2002); Leopoldo et al. (2002); Dutta et al., (2004).
Data collection: SMART (Bruker, 1999); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C20H24F3N3O2S·2H2O | Dx = 1.323 Mg m−3 |
Mr = 463.51 | Melting point = 358–359 K |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 2897 reflections |
a = 9.361 (2) Å | θ = 2.3–20.9° |
b = 35.966 (9) Å | µ = 0.19 mm−1 |
c = 6.9102 (17) Å | T = 298 K |
V = 2326.5 (10) Å3 | Block, colorless |
Z = 4 | 0.53 × 0.49 × 0.47 mm |
F(000) = 976 |
Bruker SMART CCD area-detector diffractometer | 2234 independent reflections |
Radiation source: fine-focus sealed tube | 1588 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
phi and ω scans | θmax = 25.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | h = −11→10 |
Tmin = 0.905, Tmax = 0.915 | k = −34→42 |
11753 measured reflections | l = −8→8 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.173 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0941P)2 + 1.1623P] where P = (Fo2 + 2Fc2)/3 |
2234 reflections | (Δ/σ)max = 0.001 |
308 parameters | Δρmax = 0.28 e Å−3 |
1 restraint | Δρmin = −0.34 e Å−3 |
C20H24F3N3O2S·2H2O | V = 2326.5 (10) Å3 |
Mr = 463.51 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 9.361 (2) Å | µ = 0.19 mm−1 |
b = 35.966 (9) Å | T = 298 K |
c = 6.9102 (17) Å | 0.53 × 0.49 × 0.47 mm |
Bruker SMART CCD area-detector diffractometer | 2234 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | 1588 reflections with I > 2σ(I) |
Tmin = 0.905, Tmax = 0.915 | Rint = 0.051 |
11753 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 1 restraint |
wR(F2) = 0.173 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.28 e Å−3 |
2234 reflections | Δρmin = −0.34 e Å−3 |
308 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
F1 | 0.466 (3) | 0.4600 (11) | 0.854 (8) | 0.105 (9) | 0.69 (14) |
F2 | 0.674 (5) | 0.4682 (14) | 0.718 (5) | 0.104 (8) | 0.69 (14) |
F3 | 0.612 (7) | 0.5030 (6) | 0.941 (4) | 0.105 (7) | 0.69 (14) |
F1' | 0.700 (8) | 0.480 (3) | 0.754 (16) | 0.105 (16) | 0.31 (14) |
F2' | 0.545 (14) | 0.497 (2) | 0.967 (8) | 0.104 (18) | 0.31 (14) |
F3' | 0.504 (10) | 0.450 (2) | 0.774 (16) | 0.102 (19) | 0.31 (14) |
N1 | 0.6465 (5) | 0.21413 (14) | 0.2635 (8) | 0.0622 (13) | |
H1 | 0.6501 | 0.2112 | 0.3869 | 0.075* | |
N2 | 0.8389 (5) | 0.34518 (12) | 0.5478 (7) | 0.0494 (11) | |
N3 | 0.8691 (5) | 0.40422 (12) | 0.8224 (7) | 0.0513 (11) | |
O1 | 0.7165 (5) | 0.19256 (15) | −0.0274 (7) | 0.0817 (14) | |
O2 | 0.6543 (5) | 0.44353 (11) | 1.0101 (7) | 0.0662 (12) | |
O3 | 0.0358 (4) | 0.28929 (11) | 0.6596 (6) | 0.0665 (11) | |
H21 | −0.0085 | 0.3096 | 0.6411 | 0.080* | |
H22 | 0.0846 | 0.2933 | 0.7612 | 0.080* | |
O4 | 0.9232 (9) | 0.21670 (19) | 0.7014 (14) | 0.156 (3) | |
H23 | 0.8935 | 0.2089 | 0.8104 | 0.187* | |
H24 | 0.9764 | 0.2354 | 0.7235 | 0.187* | |
S1 | 0.8756 (2) | 0.12709 (6) | 0.1079 (3) | 0.0828 (6) | |
C1 | 0.7140 (6) | 0.18998 (17) | 0.1526 (9) | 0.0564 (15) | |
C2 | 0.7881 (6) | 0.15875 (17) | 0.2491 (10) | 0.0582 (16) | |
C3 | 0.7965 (7) | 0.14968 (18) | 0.4386 (12) | 0.0702 (19) | |
H3 | 0.7577 | 0.1639 | 0.5379 | 0.084* | |
C4 | 0.8706 (8) | 0.1163 (2) | 0.4675 (14) | 0.080 (2) | |
H4 | 0.8849 | 0.1058 | 0.5890 | 0.096* | |
C5 | 0.9190 (8) | 0.1009 (2) | 0.3030 (15) | 0.089 (3) | |
H5 | 0.9698 | 0.0787 | 0.2971 | 0.107* | |
C6 | 0.5661 (6) | 0.24558 (17) | 0.1865 (10) | 0.0630 (16) | |
H6A | 0.4827 | 0.2498 | 0.2668 | 0.076* | |
H6B | 0.5333 | 0.2396 | 0.0571 | 0.076* | |
C7 | 0.6549 (6) | 0.28115 (16) | 0.1791 (9) | 0.0553 (14) | |
H7A | 0.7398 | 0.2766 | 0.1022 | 0.066* | |
H7B | 0.5998 | 0.3003 | 0.1146 | 0.066* | |
C8 | 0.6999 (7) | 0.29530 (15) | 0.3773 (9) | 0.0565 (14) | |
H8A | 0.6156 | 0.2991 | 0.4565 | 0.068* | |
H8B | 0.7590 | 0.2767 | 0.4400 | 0.068* | |
C9 | 0.7821 (6) | 0.33140 (15) | 0.3632 (9) | 0.0518 (13) | |
H9A | 0.8611 | 0.3280 | 0.2741 | 0.062* | |
H9B | 0.7198 | 0.3502 | 0.3088 | 0.062* | |
C10 | 0.7249 (6) | 0.35471 (16) | 0.6839 (9) | 0.0543 (14) | |
H10A | 0.6703 | 0.3326 | 0.7145 | 0.065* | |
H10B | 0.6608 | 0.3725 | 0.6241 | 0.065* | |
C11 | 0.7848 (6) | 0.37098 (15) | 0.8671 (9) | 0.0530 (14) | |
H11A | 0.7074 | 0.3775 | 0.9541 | 0.064* | |
H11B | 0.8448 | 0.3527 | 0.9312 | 0.064* | |
C12 | 0.9850 (6) | 0.39461 (16) | 0.6932 (10) | 0.0576 (15) | |
H12A | 1.0473 | 0.3766 | 0.7548 | 0.069* | |
H12B | 1.0407 | 0.4166 | 0.6633 | 0.069* | |
C13 | 0.9238 (7) | 0.37841 (16) | 0.5096 (9) | 0.0554 (14) | |
H13A | 0.8643 | 0.3969 | 0.4467 | 0.066* | |
H13B | 1.0012 | 0.3722 | 0.4221 | 0.066* | |
C14 | 0.9037 (6) | 0.42691 (14) | 0.9829 (9) | 0.0526 (14) | |
C15 | 0.7973 (6) | 0.44795 (15) | 1.0736 (9) | 0.0562 (14) | |
C16 | 0.8248 (8) | 0.47043 (17) | 1.2283 (10) | 0.0705 (18) | |
H16 | 0.7505 | 0.4830 | 1.2892 | 0.085* | |
C17 | 0.9637 (9) | 0.47451 (18) | 1.2945 (11) | 0.078 (2) | |
H17 | 0.9844 | 0.4903 | 1.3973 | 0.094* | |
C18 | 1.0689 (8) | 0.45489 (18) | 1.2056 (11) | 0.075 (2) | |
H18 | 1.1626 | 0.4576 | 1.2482 | 0.090* | |
C19 | 1.0410 (7) | 0.43120 (16) | 1.0548 (11) | 0.0647 (17) | |
H19 | 1.1155 | 0.4178 | 0.9997 | 0.078* | |
C20 | 0.6040 (10) | 0.4671 (2) | 0.8848 (15) | 0.085 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1 | 0.088 (8) | 0.111 (12) | 0.117 (18) | 0.016 (7) | −0.002 (10) | 0.010 (13) |
F2 | 0.113 (15) | 0.109 (16) | 0.091 (11) | 0.022 (12) | −0.001 (9) | 0.016 (10) |
F3 | 0.100 (19) | 0.091 (7) | 0.122 (8) | 0.022 (8) | 0.005 (10) | 0.012 (6) |
F1' | 0.09 (2) | 0.11 (4) | 0.12 (3) | 0.02 (2) | 0.00 (2) | 0.01 (3) |
F2' | 0.09 (4) | 0.103 (19) | 0.113 (18) | 0.03 (2) | 0.00 (2) | 0.005 (14) |
F3' | 0.10 (2) | 0.105 (19) | 0.11 (3) | 0.014 (16) | −0.01 (2) | 0.00 (2) |
N1 | 0.071 (3) | 0.069 (3) | 0.046 (3) | −0.004 (3) | −0.001 (3) | 0.000 (3) |
N2 | 0.057 (2) | 0.051 (2) | 0.040 (2) | 0.002 (2) | −0.001 (2) | 0.005 (2) |
N3 | 0.056 (3) | 0.050 (3) | 0.048 (3) | −0.002 (2) | 0.003 (2) | 0.001 (2) |
O1 | 0.079 (3) | 0.118 (4) | 0.047 (3) | 0.012 (3) | 0.004 (2) | 0.000 (3) |
O2 | 0.066 (3) | 0.058 (2) | 0.075 (3) | 0.008 (2) | 0.007 (2) | 0.006 (2) |
O3 | 0.076 (3) | 0.067 (2) | 0.056 (3) | 0.010 (2) | −0.013 (2) | 0.005 (2) |
O4 | 0.181 (6) | 0.135 (5) | 0.152 (7) | −0.048 (5) | 0.062 (6) | −0.038 (6) |
S1 | 0.0745 (11) | 0.0845 (12) | 0.0894 (14) | −0.0060 (9) | 0.0120 (11) | −0.0241 (11) |
C1 | 0.051 (3) | 0.067 (4) | 0.051 (4) | −0.014 (3) | 0.003 (3) | −0.004 (3) |
C2 | 0.051 (3) | 0.063 (4) | 0.061 (4) | −0.012 (3) | 0.001 (3) | −0.001 (3) |
C3 | 0.062 (4) | 0.071 (4) | 0.077 (5) | −0.003 (3) | −0.001 (4) | −0.003 (4) |
C4 | 0.064 (4) | 0.085 (5) | 0.090 (6) | 0.003 (3) | −0.006 (4) | 0.015 (5) |
C5 | 0.067 (4) | 0.079 (5) | 0.121 (8) | −0.001 (4) | −0.003 (5) | −0.004 (5) |
C6 | 0.060 (3) | 0.073 (4) | 0.056 (4) | −0.004 (3) | −0.007 (3) | −0.005 (3) |
C7 | 0.060 (3) | 0.060 (3) | 0.046 (3) | 0.004 (3) | −0.006 (3) | −0.002 (3) |
C8 | 0.059 (3) | 0.064 (3) | 0.046 (3) | 0.000 (3) | −0.001 (3) | 0.001 (3) |
C9 | 0.058 (3) | 0.058 (3) | 0.039 (3) | 0.002 (3) | −0.003 (3) | 0.001 (3) |
C10 | 0.055 (3) | 0.056 (3) | 0.052 (3) | −0.005 (3) | 0.008 (3) | −0.001 (3) |
C11 | 0.061 (3) | 0.052 (3) | 0.046 (3) | −0.003 (3) | 0.009 (3) | 0.005 (3) |
C12 | 0.057 (3) | 0.054 (3) | 0.061 (4) | −0.002 (3) | 0.007 (3) | 0.002 (3) |
C13 | 0.058 (3) | 0.061 (3) | 0.047 (3) | 0.001 (3) | 0.010 (3) | 0.007 (3) |
C14 | 0.067 (4) | 0.043 (3) | 0.048 (3) | 0.000 (3) | −0.006 (3) | 0.001 (3) |
C15 | 0.068 (4) | 0.048 (3) | 0.053 (3) | 0.004 (3) | 0.000 (3) | 0.000 (3) |
C16 | 0.092 (5) | 0.062 (4) | 0.057 (4) | 0.006 (3) | 0.006 (4) | −0.008 (3) |
C17 | 0.113 (6) | 0.058 (4) | 0.064 (5) | −0.003 (4) | −0.015 (4) | −0.012 (4) |
C18 | 0.086 (5) | 0.066 (4) | 0.074 (5) | −0.010 (4) | −0.020 (4) | 0.002 (4) |
C19 | 0.075 (4) | 0.051 (3) | 0.069 (4) | −0.001 (3) | −0.009 (4) | −0.001 (3) |
C20 | 0.076 (6) | 0.087 (6) | 0.092 (7) | 0.015 (5) | −0.003 (5) | 0.002 (5) |
F1—C20 | 1.331 (19) | C6—C7 | 1.526 (8) |
F2—C20 | 1.33 (4) | C6—H6A | 0.9700 |
F3—C20 | 1.35 (2) | C6—H6B | 0.9700 |
F1'—C20 | 1.35 (8) | C7—C8 | 1.521 (9) |
F2'—C20 | 1.34 (4) | C7—H7A | 0.9700 |
F3'—C20 | 1.36 (4) | C7—H7B | 0.9700 |
N1—C1 | 1.319 (8) | C8—C9 | 1.512 (8) |
N1—C6 | 1.459 (8) | C8—H8A | 0.9700 |
N1—H1 | 0.8600 | C8—H8B | 0.9700 |
N2—C13 | 1.459 (7) | C9—H9A | 0.9700 |
N2—C10 | 1.463 (7) | C9—H9B | 0.9700 |
N2—C9 | 1.468 (8) | C10—C11 | 1.504 (8) |
N3—C14 | 1.415 (8) | C10—H10A | 0.9700 |
N3—C12 | 1.447 (7) | C10—H10B | 0.9700 |
N3—C11 | 1.465 (7) | C11—H11A | 0.9700 |
O1—C1 | 1.247 (8) | C11—H11B | 0.9700 |
O2—C20 | 1.300 (9) | C12—C13 | 1.509 (9) |
O2—C15 | 1.418 (7) | C12—H12A | 0.9700 |
O3—H21 | 0.8500 | C12—H12B | 0.9700 |
O3—H22 | 0.8500 | C13—H13A | 0.9700 |
O4—H23 | 0.8501 | C13—H13B | 0.9700 |
O4—H24 | 0.8500 | C14—C19 | 1.386 (8) |
S1—C5 | 1.694 (10) | C14—C15 | 1.400 (8) |
S1—C2 | 1.709 (7) | C15—C16 | 1.365 (9) |
C1—C2 | 1.480 (9) | C16—C17 | 1.386 (10) |
C2—C3 | 1.351 (10) | C16—H16 | 0.9300 |
C3—C4 | 1.400 (10) | C17—C18 | 1.358 (10) |
C3—H3 | 0.9300 | C17—H17 | 0.9300 |
C4—C5 | 1.343 (13) | C18—C19 | 1.371 (10) |
C4—H4 | 0.9300 | C18—H18 | 0.9300 |
C5—H5 | 0.9300 | C19—H19 | 0.9300 |
C1—N1—C6 | 123.0 (6) | N2—C10—H10A | 109.4 |
C1—N1—H1 | 118.5 | C11—C10—H10A | 109.4 |
C6—N1—H1 | 118.5 | N2—C10—H10B | 109.4 |
C13—N2—C10 | 108.8 (4) | C11—C10—H10B | 109.4 |
C13—N2—C9 | 108.5 (4) | H10A—C10—H10B | 108.0 |
C10—N2—C9 | 111.9 (4) | N3—C11—C10 | 109.9 (5) |
C14—N3—C12 | 116.7 (5) | N3—C11—H11A | 109.7 |
C14—N3—C11 | 115.4 (5) | C10—C11—H11A | 109.7 |
C12—N3—C11 | 109.8 (4) | N3—C11—H11B | 109.7 |
C20—O2—C15 | 118.3 (6) | C10—C11—H11B | 109.7 |
H21—O3—H22 | 104.0 | H11A—C11—H11B | 108.2 |
H23—O4—H24 | 107.0 | N3—C12—C13 | 109.1 (5) |
C5—S1—C2 | 91.7 (4) | N3—C12—H12A | 109.9 |
O1—C1—N1 | 122.6 (7) | C13—C12—H12A | 109.9 |
O1—C1—C2 | 119.8 (6) | N3—C12—H12B | 109.9 |
N1—C1—C2 | 117.5 (6) | C13—C12—H12B | 109.9 |
C3—C2—C1 | 130.3 (6) | H12A—C12—H12B | 108.3 |
C3—C2—S1 | 111.4 (5) | N2—C13—C12 | 111.7 (5) |
C1—C2—S1 | 118.2 (5) | N2—C13—H13A | 109.3 |
C2—C3—C4 | 112.0 (7) | C12—C13—H13A | 109.3 |
C2—C3—H3 | 124.0 | N2—C13—H13B | 109.3 |
C4—C3—H3 | 124.0 | C12—C13—H13B | 109.3 |
C5—C4—C3 | 113.6 (8) | H13A—C13—H13B | 107.9 |
C5—C4—H4 | 123.2 | C19—C14—C15 | 116.0 (5) |
C3—C4—H4 | 123.2 | C19—C14—N3 | 123.9 (5) |
C4—C5—S1 | 111.3 (6) | C15—C14—N3 | 120.0 (5) |
C4—C5—H5 | 124.3 | C16—C15—C14 | 122.5 (6) |
S1—C5—H5 | 124.3 | C16—C15—O2 | 119.1 (6) |
N1—C6—C7 | 112.4 (5) | C14—C15—O2 | 118.2 (5) |
N1—C6—H6A | 109.1 | C15—C16—C17 | 119.9 (7) |
C7—C6—H6A | 109.1 | C15—C16—H16 | 120.1 |
N1—C6—H6B | 109.1 | C17—C16—H16 | 120.1 |
C7—C6—H6B | 109.1 | C18—C17—C16 | 118.4 (7) |
H6A—C6—H6B | 107.9 | C18—C17—H17 | 120.8 |
C8—C7—C6 | 113.6 (5) | C16—C17—H17 | 120.8 |
C8—C7—H7A | 108.8 | C17—C18—C19 | 121.9 (7) |
C6—C7—H7A | 108.8 | C17—C18—H18 | 119.1 |
C8—C7—H7B | 108.8 | C19—C18—H18 | 119.1 |
C6—C7—H7B | 108.8 | C18—C19—C14 | 121.2 (6) |
H7A—C7—H7B | 107.7 | C18—C19—H19 | 119.4 |
C9—C8—C7 | 111.8 (5) | C14—C19—H19 | 119.4 |
C9—C8—H8A | 109.3 | O2—C20—F2 | 114.8 (17) |
C7—C8—H8A | 109.3 | O2—C20—F1 | 109.4 (10) |
C9—C8—H8B | 109.3 | F2—C20—F1 | 110.2 (17) |
C7—C8—H8B | 109.3 | O2—C20—F2' | 113 (2) |
H8A—C8—H8B | 107.9 | O2—C20—F1' | 115 (3) |
N2—C9—C8 | 114.7 (5) | F2'—C20—F1' | 107 (4) |
N2—C9—H9A | 108.6 | O2—C20—F3 | 114.3 (11) |
C8—C9—H9A | 108.6 | F2—C20—F3 | 101.2 (14) |
N2—C9—H9B | 108.6 | F1—C20—F3 | 106.3 (10) |
C8—C9—H9B | 108.6 | O2—C20—F3' | 109.3 (16) |
H9A—C9—H9B | 107.6 | F2'—C20—F3' | 109 (2) |
N2—C10—C11 | 111.1 (4) | F1'—C20—F3' | 103 (3) |
C6—N1—C1—O1 | 1.4 (10) | C10—N2—C13—C12 | 57.5 (6) |
C6—N1—C1—C2 | −178.3 (5) | C9—N2—C13—C12 | 179.4 (5) |
O1—C1—C2—C3 | −177.8 (7) | N3—C12—C13—N2 | −59.5 (6) |
N1—C1—C2—C3 | 1.9 (10) | C12—N3—C14—C19 | −19.7 (8) |
O1—C1—C2—S1 | 0.1 (8) | C11—N3—C14—C19 | 111.5 (6) |
N1—C1—C2—S1 | 179.8 (4) | C12—N3—C14—C15 | 157.5 (5) |
C5—S1—C2—C3 | 1.7 (6) | C11—N3—C14—C15 | −71.3 (6) |
C5—S1—C2—C1 | −176.6 (5) | C19—C14—C15—C16 | −2.3 (9) |
C1—C2—C3—C4 | 176.2 (6) | N3—C14—C15—C16 | −179.7 (5) |
S1—C2—C3—C4 | −1.8 (8) | C19—C14—C15—O2 | −177.7 (5) |
C2—C3—C4—C5 | 1.0 (9) | N3—C14—C15—O2 | 4.9 (8) |
C3—C4—C5—S1 | 0.3 (9) | C20—O2—C15—C16 | 88.0 (8) |
C2—S1—C5—C4 | −1.1 (6) | C20—O2—C15—C14 | −96.5 (7) |
C1—N1—C6—C7 | −94.7 (7) | C14—C15—C16—C17 | 3.4 (10) |
N1—C6—C7—C8 | −64.5 (7) | O2—C15—C16—C17 | 178.8 (6) |
C6—C7—C8—C9 | −177.6 (5) | C15—C16—C17—C18 | −1.9 (10) |
C13—N2—C9—C8 | 175.9 (5) | C16—C17—C18—C19 | −0.5 (11) |
C10—N2—C9—C8 | −64.1 (6) | C17—C18—C19—C14 | 1.6 (10) |
C7—C8—C9—N2 | −175.3 (5) | C15—C14—C19—C18 | −0.2 (9) |
C13—N2—C10—C11 | −56.7 (6) | N3—C14—C19—C18 | 177.1 (6) |
C9—N2—C10—C11 | −176.5 (4) | C15—O2—C20—F2 | 60 (3) |
C14—N3—C11—C10 | 166.0 (5) | C15—O2—C20—F1 | −176 (3) |
C12—N3—C11—C10 | −59.6 (6) | C15—O2—C20—F2' | −89 (7) |
N2—C10—C11—N3 | 58.4 (6) | C15—O2—C20—F1' | 34 (6) |
C14—N3—C12—C13 | −166.8 (5) | C15—O2—C20—F3 | −57 (3) |
C11—N3—C12—C13 | 59.4 (6) | C15—O2—C20—F3' | 150 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O3i | 0.86 | 2.17 | 2.929 (5) | 148 |
O3—H21···N2ii | 0.85 | 2.02 | 2.835 (4) | 160 |
O3—H22···O1iii | 0.85 | 1.98 | 2.822 (5) | 171 |
O4—H23···O1iv | 0.85 | 2.09 | 2.830 (7) | 146 |
O4—H24···O3v | 0.85 | 2.07 | 2.831 (6) | 150 |
Symmetry codes: (i) x+1/2, −y+1/2, z; (ii) x−1, y, z; (iii) x−1/2, −y+1/2, z+1; (iv) x, y, z+1; (v) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C20H24F3N3O2S·2H2O |
Mr | 463.51 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 298 |
a, b, c (Å) | 9.361 (2), 35.966 (9), 6.9102 (17) |
V (Å3) | 2326.5 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.19 |
Crystal size (mm) | 0.53 × 0.49 × 0.47 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 1999) |
Tmin, Tmax | 0.905, 0.915 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11753, 2234, 1588 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.173, 1.05 |
No. of reflections | 2234 |
No. of parameters | 308 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.34 |
Computer programs: SMART (Bruker, 1999), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O3i | 0.86 | 2.17 | 2.929 (5) | 148 |
O3—H21···N2ii | 0.85 | 2.02 | 2.835 (4) | 160 |
O3—H22···O1iii | 0.85 | 1.98 | 2.822 (5) | 171 |
O4—H23···O1iv | 0.85 | 2.09 | 2.830 (7) | 146 |
O4—H24···O3v | 0.85 | 2.07 | 2.831 (6) | 150 |
Symmetry codes: (i) x+1/2, −y+1/2, z; (ii) x−1, y, z; (iii) x−1/2, −y+1/2, z+1; (iv) x, y, z+1; (v) x+1, y, z. |
Acknowledgements
We are grateful to the National Natural Science Foundation of China (project No. 30701052) for financial support.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The title compound was designed as a dopamine D3 ligand. The dopamine D3 receptor is recognized as a potential therapeutic target for the treatment of various neurological and psychiatric disorders, such as schizophrenia, Parkinson's disease and drug abuse (Pilla et al., 1999; Garcia-Ladona et al., 2003; Wood et al., 2000; Luedtke et al., 2003). Study of structure-activity relationships for dopamine D3 receptor are helpfull to rationalize the discovery of super-potent and highly selective dopamine D3 receptor antagonists and partial agonists (Bettinetti et al., 2002; Leopoldo et al., 2002; Dutta et al., 2004). We report here the crystal structure of the title compound, which was synthesized by the two-component reaction of 4-(4-(2-(trifluoromethoxy) phenyl) piperazin-1-yl)butan-1-amine and thiophene-2-carbonyl chloride. In the title compound, the piperazine ring (C10/C11/C12/C13/N2/N3) adopts a chair conformation, atoms C10, C11, C12 and C13 are coplanar, with atoms N2 and N3 deviating from the plane by -0.661 (5) and 0.679 (5) Å, respectively (Fig. 1).The dihedral angle between the C10/C11/C12/C13 plane and the C15/C16/C17/C18/C19/C20 plane is 47.71 (6) °.The molecules are linked by N1–H1···O3 intermolecular hydrogen bonds (Table 1, Fig. 2). In the molecular structure, the fluorine atoms of trifluoromethyl group is disordered over two sites with occupancies of 0.69 (11) and 0.31 (11).