organic compounds
N-{2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl}-4-nitro-N-(2-pyridyl)benzamide
aKey Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, People's Republic of China
*Correspondence e-mail: luchunxiong@yahoo.com.cn
In the title compound, C25H27N5O4, the piperizine ring adopts a chair conformation. The dihedral angles between the pyridine ring and the two benzene rings are 65.5 (4) and 70.7 (4)°, while the dihedral angle between the two benzene rings is 17.3 (3)°. An intramolecular C—H⋯O hydrogen bond occurs.
Related literature
For the use of the title compound as a labeling precursor of the serotonin (5-HT1 A) receptor imaging agent,18F-MPPF, see: Le Bars et al. (1998); Zhuang et al. (1994).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: RAPID-AUTO (Rigaku, 2004); cell RAPID-AUTO; data reduction: RAPID-AUTO; 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
10.1107/S1600536810038080/fk2025sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810038080/fk2025Isup2.hkl
The title compound was synthesized according to the method reported in the literature(Zhuang et al.,1994) and crystallized from a mixed solvent composed of ethyl acetate and petroleum ether (1:1); colorless block-shaped crystals were obtained after several days.
Positional parameters of all the H atoms bonded to C atoms were calculated geometrically and were allowed to ride on the C atoms to which they are attached with C—H distances of 0.95Å (CH), 0.98Å (CH3) or 0.99Å (CH2), and with Uiso(H) = 1.2Ueq (or 1.5 for CH3) of the parent atoms.
Data collection: RAPID-AUTO (Rigaku, 2004); cell
RAPID-AUTO (Rigaku, 2004); data reduction: RAPID-AUTO (Rigaku, 2004); 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).Fig. 1. The molecular structure of the title compound, with the atomic numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. |
C25H27N5O4 | F(000) = 976 |
Mr = 461.52 | Dx = 1.372 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 6374 reflections |
a = 11.480 (2) Å | θ = 3.1–27.5° |
b = 15.512 (3) Å | µ = 0.10 mm−1 |
c = 13.235 (2) Å | T = 103 K |
β = 108.505 (3)° | Block, yellow |
V = 2234.9 (7) Å3 | 0.50 × 0.50 × 0.33 mm |
Z = 4 |
Rigaku SPIDER diffractometer | 4318 reflections with I > 2σ(I) |
Radiation source: Rotating Anode | Rint = 0.028 |
Graphite monochromator | θmax = 27.5°, θmin = 3.1° |
ω scans | h = −14→14 |
17307 measured reflections | k = −20→19 |
5066 independent reflections | l = −13→17 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.098 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0465P)2 + 0.850P] where P = (Fo2 + 2Fc2)/3 |
5066 reflections | (Δ/σ)max = 0.001 |
308 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
C25H27N5O4 | V = 2234.9 (7) Å3 |
Mr = 461.52 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 11.480 (2) Å | µ = 0.10 mm−1 |
b = 15.512 (3) Å | T = 103 K |
c = 13.235 (2) Å | 0.50 × 0.50 × 0.33 mm |
β = 108.505 (3)° |
Rigaku SPIDER diffractometer | 4318 reflections with I > 2σ(I) |
17307 measured reflections | Rint = 0.028 |
5066 independent reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.098 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.31 e Å−3 |
5066 reflections | Δρmin = −0.17 e Å−3 |
308 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.63130 (9) | 0.66210 (6) | 0.68937 (8) | 0.0225 (2) | |
O2 | 0.27919 (9) | 0.13878 (6) | 0.52481 (7) | 0.0206 (2) | |
O3 | 0.25952 (9) | −0.31358 (6) | 0.59155 (8) | 0.0251 (2) | |
O4 | 0.35176 (10) | −0.30235 (6) | 0.47275 (9) | 0.0291 (2) | |
N1 | 0.53263 (10) | 0.53783 (7) | 0.77943 (8) | 0.0151 (2) | |
N2 | 0.44755 (10) | 0.36714 (6) | 0.70911 (8) | 0.0158 (2) | |
N3 | 0.39572 (10) | 0.12774 (6) | 0.69878 (8) | 0.0149 (2) | |
N4 | 0.57867 (10) | 0.05037 (7) | 0.73066 (9) | 0.0171 (2) | |
N5 | 0.30875 (10) | −0.27110 (7) | 0.53821 (9) | 0.0192 (2) | |
C1 | 0.57913 (11) | 0.68987 (8) | 0.76307 (10) | 0.0171 (3) | |
C2 | 0.57713 (12) | 0.77550 (8) | 0.79298 (11) | 0.0211 (3) | |
H2 | 0.6113 | 0.8187 | 0.7600 | 0.025* | |
C3 | 0.52534 (13) | 0.79824 (9) | 0.87100 (11) | 0.0227 (3) | |
H3 | 0.5244 | 0.8569 | 0.8913 | 0.027* | |
C4 | 0.47553 (13) | 0.73621 (9) | 0.91885 (11) | 0.0220 (3) | |
H4 | 0.4405 | 0.7518 | 0.9724 | 0.026* | |
C5 | 0.47655 (12) | 0.64994 (9) | 0.88842 (10) | 0.0187 (3) | |
H5 | 0.4417 | 0.6073 | 0.9217 | 0.022* | |
C6 | 0.52736 (11) | 0.62517 (8) | 0.81082 (10) | 0.0158 (3) | |
C7 | 0.51121 (12) | 0.47400 (8) | 0.85260 (10) | 0.0175 (3) | |
H7A | 0.4262 | 0.4796 | 0.8549 | 0.021* | |
H7B | 0.5683 | 0.4844 | 0.9253 | 0.021* | |
C8 | 0.53066 (13) | 0.38377 (8) | 0.81686 (10) | 0.0194 (3) | |
H8A | 0.6168 | 0.3773 | 0.8179 | 0.023* | |
H8B | 0.5155 | 0.3411 | 0.8669 | 0.023* | |
C9 | 0.47539 (12) | 0.42937 (8) | 0.63708 (10) | 0.0177 (3) | |
H9A | 0.4223 | 0.4183 | 0.5631 | 0.021* | |
H9B | 0.5620 | 0.4229 | 0.6396 | 0.021* | |
C10 | 0.45397 (12) | 0.52014 (8) | 0.66945 (10) | 0.0176 (3) | |
H10A | 0.4726 | 0.5620 | 0.6202 | 0.021* | |
H10B | 0.3666 | 0.5271 | 0.6645 | 0.021* | |
C11 | 0.45819 (12) | 0.27806 (8) | 0.67654 (10) | 0.0170 (3) | |
H11A | 0.5445 | 0.2587 | 0.7063 | 0.020* | |
H11B | 0.4342 | 0.2748 | 0.5979 | 0.020* | |
C12 | 0.37576 (12) | 0.21947 (8) | 0.71606 (10) | 0.0163 (3) | |
H12A | 0.3916 | 0.2297 | 0.7931 | 0.020* | |
H12B | 0.2888 | 0.2342 | 0.6785 | 0.020* | |
C13 | 0.49869 (11) | 0.08612 (8) | 0.77229 (10) | 0.0144 (2) | |
C14 | 0.51295 (12) | 0.08617 (8) | 0.88043 (10) | 0.0187 (3) | |
H14 | 0.4544 | 0.1134 | 0.9069 | 0.022* | |
C15 | 0.61517 (13) | 0.04521 (9) | 0.94863 (11) | 0.0222 (3) | |
H15 | 0.6285 | 0.0446 | 1.0232 | 0.027* | |
C16 | 0.69744 (13) | 0.00529 (9) | 0.90684 (11) | 0.0212 (3) | |
H16 | 0.7670 | −0.0245 | 0.9517 | 0.025* | |
C17 | 0.67581 (12) | 0.00988 (9) | 0.79809 (11) | 0.0206 (3) | |
H17 | 0.7328 | −0.0171 | 0.7695 | 0.025* | |
C18 | 0.33804 (11) | 0.09378 (8) | 0.59942 (10) | 0.0150 (2) | |
C19 | 0.33808 (11) | −0.00235 (8) | 0.58734 (10) | 0.0145 (3) | |
C20 | 0.31415 (12) | −0.05593 (8) | 0.66290 (10) | 0.0163 (3) | |
H20 | 0.3063 | −0.0319 | 0.7265 | 0.020* | |
C21 | 0.30169 (12) | −0.14415 (8) | 0.64579 (10) | 0.0178 (3) | |
H21 | 0.2827 | −0.1809 | 0.6958 | 0.021* | |
C22 | 0.31762 (11) | −0.17711 (8) | 0.55421 (10) | 0.0163 (3) | |
C23 | 0.34266 (12) | −0.12582 (8) | 0.47817 (10) | 0.0177 (3) | |
H23 | 0.3541 | −0.1504 | 0.4163 | 0.021* | |
C24 | 0.35056 (12) | −0.03751 (8) | 0.49471 (10) | 0.0173 (3) | |
H24 | 0.3646 | −0.0007 | 0.4424 | 0.021* | |
C25 | 0.68011 (14) | 0.72601 (9) | 0.63702 (12) | 0.0257 (3) | |
H25A | 0.6140 | 0.7646 | 0.5969 | 0.039* | |
H25B | 0.7169 | 0.6981 | 0.5880 | 0.039* | |
H25C | 0.7430 | 0.7593 | 0.6901 | 0.039* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0285 (5) | 0.0173 (5) | 0.0263 (5) | −0.0025 (4) | 0.0150 (4) | 0.0013 (4) |
O2 | 0.0239 (5) | 0.0177 (5) | 0.0172 (5) | 0.0010 (4) | 0.0020 (4) | 0.0021 (4) |
O3 | 0.0281 (5) | 0.0165 (5) | 0.0313 (6) | −0.0037 (4) | 0.0104 (4) | 0.0022 (4) |
O4 | 0.0346 (6) | 0.0198 (5) | 0.0385 (6) | 0.0003 (4) | 0.0194 (5) | −0.0083 (4) |
N1 | 0.0191 (5) | 0.0111 (5) | 0.0137 (5) | −0.0013 (4) | 0.0031 (4) | 0.0002 (4) |
N2 | 0.0216 (6) | 0.0110 (5) | 0.0136 (5) | −0.0013 (4) | 0.0036 (4) | −0.0009 (4) |
N3 | 0.0176 (5) | 0.0110 (5) | 0.0154 (5) | 0.0004 (4) | 0.0041 (4) | −0.0016 (4) |
N4 | 0.0165 (5) | 0.0167 (5) | 0.0176 (5) | −0.0006 (4) | 0.0048 (4) | 0.0002 (4) |
N5 | 0.0176 (5) | 0.0145 (5) | 0.0244 (6) | 0.0003 (4) | 0.0050 (5) | −0.0013 (4) |
C1 | 0.0161 (6) | 0.0169 (6) | 0.0164 (6) | −0.0007 (5) | 0.0022 (5) | 0.0003 (5) |
C2 | 0.0236 (7) | 0.0148 (6) | 0.0218 (7) | −0.0027 (5) | 0.0027 (5) | 0.0017 (5) |
C3 | 0.0271 (7) | 0.0148 (6) | 0.0223 (7) | −0.0007 (5) | 0.0022 (6) | −0.0034 (5) |
C4 | 0.0250 (7) | 0.0208 (7) | 0.0184 (7) | 0.0013 (5) | 0.0043 (5) | −0.0037 (5) |
C5 | 0.0201 (6) | 0.0173 (6) | 0.0174 (6) | −0.0013 (5) | 0.0042 (5) | 0.0000 (5) |
C6 | 0.0152 (6) | 0.0131 (6) | 0.0159 (6) | −0.0005 (5) | 0.0003 (5) | −0.0001 (4) |
C7 | 0.0226 (6) | 0.0139 (6) | 0.0150 (6) | −0.0024 (5) | 0.0045 (5) | −0.0001 (5) |
C8 | 0.0258 (7) | 0.0139 (6) | 0.0153 (6) | −0.0011 (5) | 0.0018 (5) | 0.0011 (5) |
C9 | 0.0234 (7) | 0.0146 (6) | 0.0143 (6) | −0.0011 (5) | 0.0047 (5) | −0.0001 (5) |
C10 | 0.0206 (6) | 0.0141 (6) | 0.0154 (6) | −0.0002 (5) | 0.0018 (5) | 0.0011 (5) |
C11 | 0.0211 (6) | 0.0130 (6) | 0.0163 (6) | 0.0004 (5) | 0.0049 (5) | −0.0013 (5) |
C12 | 0.0194 (6) | 0.0117 (6) | 0.0175 (6) | 0.0016 (5) | 0.0051 (5) | −0.0020 (5) |
C13 | 0.0160 (6) | 0.0100 (5) | 0.0162 (6) | −0.0028 (5) | 0.0036 (5) | −0.0010 (4) |
C14 | 0.0225 (6) | 0.0175 (6) | 0.0169 (6) | −0.0005 (5) | 0.0072 (5) | −0.0004 (5) |
C15 | 0.0285 (7) | 0.0212 (7) | 0.0145 (6) | −0.0022 (6) | 0.0036 (5) | 0.0008 (5) |
C16 | 0.0201 (6) | 0.0164 (6) | 0.0226 (7) | −0.0002 (5) | 0.0006 (5) | 0.0031 (5) |
C17 | 0.0176 (6) | 0.0184 (6) | 0.0244 (7) | 0.0010 (5) | 0.0044 (5) | −0.0020 (5) |
C18 | 0.0149 (6) | 0.0150 (6) | 0.0157 (6) | −0.0009 (5) | 0.0055 (5) | −0.0002 (5) |
C19 | 0.0119 (6) | 0.0140 (6) | 0.0160 (6) | −0.0007 (5) | 0.0019 (5) | −0.0012 (5) |
C20 | 0.0175 (6) | 0.0175 (6) | 0.0141 (6) | −0.0017 (5) | 0.0052 (5) | −0.0021 (5) |
C21 | 0.0178 (6) | 0.0171 (6) | 0.0183 (6) | −0.0029 (5) | 0.0054 (5) | 0.0020 (5) |
C22 | 0.0142 (6) | 0.0126 (6) | 0.0208 (6) | −0.0012 (5) | 0.0035 (5) | −0.0019 (5) |
C23 | 0.0187 (6) | 0.0183 (6) | 0.0166 (6) | −0.0015 (5) | 0.0064 (5) | −0.0043 (5) |
C24 | 0.0193 (6) | 0.0173 (6) | 0.0152 (6) | −0.0022 (5) | 0.0053 (5) | 0.0008 (5) |
C25 | 0.0288 (7) | 0.0225 (7) | 0.0285 (8) | −0.0060 (6) | 0.0128 (6) | 0.0041 (6) |
O1—C1 | 1.3662 (16) | C9—C10 | 1.5145 (18) |
O1—C25 | 1.4223 (16) | C9—H9A | 0.9900 |
O2—C18 | 1.2228 (15) | C9—H9B | 0.9900 |
O3—N5 | 1.2268 (15) | C10—H10A | 0.9900 |
O4—N5 | 1.2251 (15) | C10—H10B | 0.9900 |
N1—C6 | 1.4240 (16) | C11—C12 | 1.5196 (18) |
N1—C7 | 1.4594 (16) | C11—H11A | 0.9900 |
N1—C10 | 1.4747 (16) | C11—H11B | 0.9900 |
N2—C9 | 1.4616 (16) | C12—H12A | 0.9900 |
N2—C11 | 1.4641 (16) | C12—H12B | 0.9900 |
N2—C8 | 1.4652 (16) | C13—C14 | 1.3879 (18) |
N3—C18 | 1.3758 (16) | C14—C15 | 1.3867 (19) |
N3—C13 | 1.4250 (15) | C14—H14 | 0.9500 |
N3—C12 | 1.4705 (15) | C15—C16 | 1.383 (2) |
N4—C13 | 1.3323 (16) | C15—H15 | 0.9500 |
N4—C17 | 1.3426 (17) | C16—C17 | 1.383 (2) |
N5—C22 | 1.4722 (16) | C16—H16 | 0.9500 |
C1—C2 | 1.3882 (18) | C17—H17 | 0.9500 |
C1—C6 | 1.4137 (18) | C18—C19 | 1.4997 (17) |
C2—C3 | 1.391 (2) | C19—C24 | 1.3901 (18) |
C2—H2 | 0.9500 | C19—C20 | 1.3931 (18) |
C3—C4 | 1.372 (2) | C20—C21 | 1.3870 (18) |
C3—H3 | 0.9500 | C20—H20 | 0.9500 |
C4—C5 | 1.3987 (19) | C21—C22 | 1.3801 (19) |
C4—H4 | 0.9500 | C21—H21 | 0.9500 |
C5—C6 | 1.3866 (19) | C22—C23 | 1.3828 (18) |
C5—H5 | 0.9500 | C23—C24 | 1.3856 (18) |
C7—C8 | 1.5164 (18) | C23—H23 | 0.9500 |
C7—H7A | 0.9900 | C24—H24 | 0.9500 |
C7—H7B | 0.9900 | C25—H25A | 0.9800 |
C8—H8A | 0.9900 | C25—H25B | 0.9800 |
C8—H8B | 0.9900 | C25—H25C | 0.9800 |
C1—O1—C25 | 117.24 (11) | H10A—C10—H10B | 108.1 |
C6—N1—C7 | 114.85 (10) | N2—C11—C12 | 110.12 (10) |
C6—N1—C10 | 113.30 (10) | N2—C11—H11A | 109.6 |
C7—N1—C10 | 110.45 (10) | C12—C11—H11A | 109.6 |
C9—N2—C11 | 112.05 (10) | N2—C11—H11B | 109.6 |
C9—N2—C8 | 107.99 (10) | C12—C11—H11B | 109.6 |
C11—N2—C8 | 111.31 (10) | H11A—C11—H11B | 108.2 |
C18—N3—C13 | 121.49 (10) | N3—C12—C11 | 112.36 (10) |
C18—N3—C12 | 117.89 (10) | N3—C12—H12A | 109.1 |
C13—N3—C12 | 117.95 (10) | C11—C12—H12A | 109.1 |
C13—N4—C17 | 117.12 (11) | N3—C12—H12B | 109.1 |
O4—N5—O3 | 123.85 (11) | C11—C12—H12B | 109.1 |
O4—N5—C22 | 117.94 (11) | H12A—C12—H12B | 107.9 |
O3—N5—C22 | 118.20 (11) | N4—C13—C14 | 123.74 (12) |
O1—C1—C2 | 123.77 (12) | N4—C13—N3 | 115.94 (11) |
O1—C1—C6 | 115.92 (11) | C14—C13—N3 | 120.30 (11) |
C2—C1—C6 | 120.30 (12) | C15—C14—C13 | 118.00 (12) |
C1—C2—C3 | 120.27 (13) | C15—C14—H14 | 121.0 |
C1—C2—H2 | 119.9 | C13—C14—H14 | 121.0 |
C3—C2—H2 | 119.9 | C16—C15—C14 | 119.28 (13) |
C4—C3—C2 | 120.24 (13) | C16—C15—H15 | 120.4 |
C4—C3—H3 | 119.9 | C14—C15—H15 | 120.4 |
C2—C3—H3 | 119.9 | C17—C16—C15 | 118.25 (12) |
C3—C4—C5 | 119.68 (13) | C17—C16—H16 | 120.9 |
C3—C4—H4 | 120.2 | C15—C16—H16 | 120.9 |
C5—C4—H4 | 120.2 | N4—C17—C16 | 123.57 (13) |
C6—C5—C4 | 121.48 (13) | N4—C17—H17 | 118.2 |
C6—C5—H5 | 119.3 | C16—C17—H17 | 118.2 |
C4—C5—H5 | 119.3 | O2—C18—N3 | 121.88 (11) |
C5—C6—C1 | 118.02 (12) | O2—C18—C19 | 120.02 (11) |
C5—C6—N1 | 123.12 (11) | N3—C18—C19 | 117.80 (11) |
C1—C6—N1 | 118.83 (11) | C24—C19—C20 | 119.87 (12) |
N1—C7—C8 | 110.29 (11) | C24—C19—C18 | 119.19 (11) |
N1—C7—H7A | 109.6 | C20—C19—C18 | 120.66 (11) |
C8—C7—H7A | 109.6 | C21—C20—C19 | 120.34 (12) |
N1—C7—H7B | 109.6 | C21—C20—H20 | 119.8 |
C8—C7—H7B | 109.6 | C19—C20—H20 | 119.8 |
H7A—C7—H7B | 108.1 | C22—C21—C20 | 118.25 (12) |
N2—C8—C7 | 110.57 (10) | C22—C21—H21 | 120.9 |
N2—C8—H8A | 109.5 | C20—C21—H21 | 120.9 |
C7—C8—H8A | 109.5 | C21—C22—C23 | 122.82 (12) |
N2—C8—H8B | 109.5 | C21—C22—N5 | 118.09 (11) |
C7—C8—H8B | 109.5 | C23—C22—N5 | 119.08 (11) |
H8A—C8—H8B | 108.1 | C22—C23—C24 | 118.18 (12) |
N2—C9—C10 | 109.93 (10) | C22—C23—H23 | 120.9 |
N2—C9—H9A | 109.7 | C24—C23—H23 | 120.9 |
C10—C9—H9A | 109.7 | C23—C24—C19 | 120.48 (12) |
N2—C9—H9B | 109.7 | C23—C24—H24 | 119.8 |
C10—C9—H9B | 109.7 | C19—C24—H24 | 119.8 |
H9A—C9—H9B | 108.2 | O1—C25—H25A | 109.5 |
N1—C10—C9 | 110.41 (10) | O1—C25—H25B | 109.5 |
N1—C10—H10A | 109.6 | H25A—C25—H25B | 109.5 |
C9—C10—H10A | 109.6 | O1—C25—H25C | 109.5 |
N1—C10—H10B | 109.6 | H25A—C25—H25C | 109.5 |
C9—C10—H10B | 109.6 | H25B—C25—H25C | 109.5 |
C25—O1—C1—C2 | −3.46 (18) | C17—N4—C13—N3 | −179.26 (11) |
C25—O1—C1—C6 | 177.71 (11) | C18—N3—C13—N4 | 38.82 (16) |
O1—C1—C2—C3 | −178.09 (12) | C12—N3—C13—N4 | −122.24 (12) |
C6—C1—C2—C3 | 0.69 (19) | C18—N3—C13—C14 | −142.72 (12) |
C1—C2—C3—C4 | −0.2 (2) | C12—N3—C13—C14 | 56.22 (16) |
C2—C3—C4—C5 | −0.3 (2) | N4—C13—C14—C15 | −1.27 (19) |
C3—C4—C5—C6 | 0.2 (2) | N3—C13—C14—C15 | −179.60 (11) |
C4—C5—C6—C1 | 0.29 (19) | C13—C14—C15—C16 | −0.83 (19) |
C4—C5—C6—N1 | 178.53 (12) | C14—C15—C16—C17 | 1.7 (2) |
O1—C1—C6—C5 | 178.13 (11) | C13—N4—C17—C16 | −1.38 (19) |
C2—C1—C6—C5 | −0.74 (18) | C15—C16—C17—N4 | −0.6 (2) |
O1—C1—C6—N1 | −0.19 (16) | C13—N3—C18—O2 | −155.72 (12) |
C2—C1—C6—N1 | −179.06 (11) | C12—N3—C18—O2 | 5.36 (18) |
C7—N1—C6—C5 | −15.52 (17) | C13—N3—C18—C19 | 30.55 (17) |
C10—N1—C6—C5 | 112.69 (14) | C12—N3—C18—C19 | −168.37 (10) |
C7—N1—C6—C1 | 162.70 (11) | O2—C18—C19—C24 | 43.64 (17) |
C10—N1—C6—C1 | −69.08 (15) | N3—C18—C19—C24 | −142.51 (12) |
C6—N1—C7—C8 | −174.73 (10) | O2—C18—C19—C20 | −130.21 (13) |
C10—N1—C7—C8 | 55.64 (13) | N3—C18—C19—C20 | 43.64 (17) |
C9—N2—C8—C7 | 61.10 (14) | C24—C19—C20—C21 | −0.53 (19) |
C11—N2—C8—C7 | −175.50 (11) | C18—C19—C20—C21 | 173.28 (11) |
N1—C7—C8—N2 | −58.92 (14) | C19—C20—C21—C22 | 2.09 (19) |
C11—N2—C9—C10 | 175.83 (10) | C20—C21—C22—C23 | −1.46 (19) |
C8—N2—C9—C10 | −61.23 (13) | C20—C21—C22—N5 | 177.83 (11) |
C6—N1—C10—C9 | 173.32 (11) | O4—N5—C22—C21 | −162.31 (12) |
C7—N1—C10—C9 | −56.22 (14) | O3—N5—C22—C21 | 17.24 (17) |
N2—C9—C10—N1 | 59.47 (14) | O4—N5—C22—C23 | 17.01 (17) |
C9—N2—C11—C12 | −153.57 (10) | O3—N5—C22—C23 | −163.44 (12) |
C8—N2—C11—C12 | 85.39 (13) | C21—C22—C23—C24 | −0.75 (19) |
C18—N3—C12—C11 | −81.95 (14) | N5—C22—C23—C24 | 179.97 (11) |
C13—N3—C12—C11 | 79.80 (14) | C22—C23—C24—C19 | 2.35 (19) |
N2—C11—C12—N3 | −171.93 (10) | C20—C19—C24—C23 | −1.74 (19) |
C17—N4—C13—C14 | 2.34 (18) | C18—C19—C24—C23 | −175.64 (11) |
Experimental details
Crystal data | |
Chemical formula | C25H27N5O4 |
Mr | 461.52 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 103 |
a, b, c (Å) | 11.480 (2), 15.512 (3), 13.235 (2) |
β (°) | 108.505 (3) |
V (Å3) | 2234.9 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.50 × 0.50 × 0.33 |
Data collection | |
Diffractometer | Rigaku SPIDER diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17307, 5066, 4318 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.098, 1.00 |
No. of reflections | 5066 |
No. of parameters | 308 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.17 |
Computer programs: RAPID-AUTO (Rigaku, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported by the Natural Science Foundation of Jiangsu Province (BK2008112) and the Science Foundation of the Health Department of Jiangsu Province (H200624).
References
Le Bars, D., Lemaire, C., Ginovart, N., Plenevaux, A., Aerts, J., Brihaye, C. & Comar, D. (1998). Nucl. Med. Biol. 25, 343–350. Web of Science CrossRef CAS PubMed Google Scholar
Rigaku (2004). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zhuang, Z. P., Kung, M. P. & Kung, H. F. (1994). J. Med. Chem. 37, 1406–1407. CrossRef CAS PubMed Web of Science Google Scholar
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N-{2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl}-4-nitro-N-(2-pyridyl)benzamide, (I), is a labeling precursor of 18F-MPPF, serotonin (5-HT1A) receptor imaging agents (18F-MPPF = 4-(2-methoxyphenyl)-1-[2-(N-2-pyridinyl)-p-18F-fluorobenzamido]ethylpiperazine). We report here the crystal structure of (I). Two phenyl rings and pyridine rings are planar with a maximum deviation of 0.004 (2)Å for atom C1, 0.010 (9)Å for atom C20 and 0.012 (7)Å for atom N4. The dihedral angles between the pyridine ring and the other two phenyl rings are 65.5 (4) and 70.7 (4)°, respectively, while the dihedral angle between the two phenyl rings is 17.3 (3)°. The piperazine ring adopts a chair conformation. Intramolecular C—H···O hydrogen bond could be found in the crystal structure of the title compound.