organic compounds
of 1-(4-methoxyphenyl)-4-(4-nitrophenyl)-3-phenoxyazetidin-2-one
aDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, bDepartment of Chemistry, College of Sciences, Shiraz University, 71454 Shiraz, Iran, cDepartment of Physics, Faculty of Education, Dicle University, 21280, Diyarbakir, Turkey, and dScience and Technology Application and Research Center, Dicle University, 21280, Diyarbakir, Turkey
*Correspondence e-mail: akkurt@erciyes.edu.tr
In the title compound, C22H18N2O5, the central β-lactam ring (r.m.s. deviation = 0.002 Å) makes dihedral angles of 64.21 (14), 82.35 (12) and 20.66 (13)° with the phenyl ring and the nitro- and methoxybenzene rings, respectively. The molecular structure is stabilized by an intramolecular C—H⋯O hydrogen bond. In the crystal, molecules are linked via C—H⋯O hydrogen bonds, forming slabs lying parallel to (111). The slabs are linked via C—H⋯π interactions, forming a three-dimensional network.
Keywords: crystal structure; phenoxyazetidin-2-one; β-lactam ring; four-membered monocyclic aza-heterocycles; antibiotics; C—H⋯O hydrogen bonds; C—H⋯π interactions.
CCDC reference: 1036033
1. Related literature
For general properties and applications in medicinal chemistry of four-membered monocyclic aza-heterocycles, see: Bode et al. (1989); Gerona-Navarro et al. (2004); Grafe (1992); Gérard et al. (2004); Mehta et al. (2010); Setti et al. (2005); Singh et al. (2008); Southgate (1994); Sutton et al. (2004); Sperka et al. (2005). For related structures, see: Akkurt et al. (2011); Butcher et al. (2011).
2. Experimental
2.1. Crystal data
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2.2. Data collection
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS2014 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
CCDC reference: 1036033
https://doi.org/10.1107/S2056989014025833/su5026sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989014025833/su5026Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989014025833/su5026Isup3.cml
A solution of (E)-4-methoxy-N-(4-nitrobenzylidene)aniline (1.00 mmol) was stirred with the phenoxy acetic acid (1.50 mmol), p-toluenesulfonyl chloride (1.50 mmol) and triethylamine (5.0 mmol) in dry CH2Cl2 at room temperature overnight. Then it was washed with HCl 1 N (20 ml), saturated NaHCO3 (20 ml), brine (20 ml), dried over Na2SO4 and the solvent was evaporated under reduced pressure to give the crude product. It was then recrystallized from hexan/EtOAc (2:6) to give colourless prisms (yield 75%; m.p: 413–415 K). IR (KBr, cm-1): 1744 (CO, β-lactam). 1H-NMR (250 MHz CDCl3), δ (p.p.m.): 3.69 (OMe, s, 3H), 5.01 (H-4, d, 1H, J = 4.7 HZ), 5.40 (H-3, d, 1H, J = 4.7 HZ), 6.69–8.10 (ArH, m, 13H). 13C-NMR (62.9 MHz, CDCl3), δ (p.p.m.): 54.3 (OMe), 63.7 (C-4), 83.1 (C-3), 114.5–157.2 (aromatic carbons), 162.8 (CO, β-lactam). GC—MS m/z = 391 [M+]. Analysis calculated for C22H18N2O5: C, 67.69; H, 4.65; N, 7.18%. Found: C, 67.65; H, 4.70; N, 7.20%.
All H atoms were placed in calculated positions, with C—H = 0.93 - 0.98 Å, and refined using a riding model with Uiso(H) = 1.5Ueq(C) for methyl H atoms and = 1.2Ueq(C) for other H atoms. The crystal was of very low quality and in the final cycles of
45 reflections were omitted owing to very bad agreement [reflections (-6 7 5), (-6 7 3), (-5 8 5), (-6 7 2), (-5 8 4), (-5 8 2), (-5 8 3), (-4 9 3), (-4 8 3), (-5 7 1), (-5 7 2), (-6 6 2), (-4 8 5), (-5 8 1), (-4 8 2), (-5 7 4), (-4 9 4), (-5 7 0), (-6 7 4), (-5 7 3), (-4 9 2), (-6 5 1), (-6 6 3), (-4 8 1), (-5 6 3), (-5 6 2), (-4 8 4), (0 10 2), (-5 6 0), (-6 6 1), (-4 7 4), (-6 6 0), (-4 7 0), (-4 7 3), (-4 7 1), (-3 8 4), (-3 8 3), (-4 7 2), (6 - 5 1), (-5 6 1), (-6 4 0), (6 - 6 1), (0 - 4 2), (5 - 6 1), (1 1 1)].Four-membered monocyclic aza-heterocycles (Singh, et al., 2008), even more than 70 years after the discovery of penicillin, β-lactam antibiotics remain as one of the most important contributions of science to humanity (Southgate, 1994). β-Lactam antibiotics have been successfully used in the treatment of infectious diseases for many years (Grafe, 1992). Literature survey reveals that 2-azetidinones show to possess other relevant biological activities (Gerona-Navarro et al., 2004). which include human cytomegalovirus (HCMV) inhibitor, (Mehta et al., 2010), human leukocyte elastase (HLE) inhibitor, (Gérard et al., 2004), thrombin inhibitor, (Sutton et al., 2004), porcine pancreatic elastase (PPE) inhibitor, (Bode et al., 1989), HIV-1 protease inhibitor (Sperka et al., 2005), cysteine protease inhibitor (Setti et al., 2005).
In the title compound (Fig. 1), the β-lactam ring (N1/C1–C3) is nearly planar [r.m.s. deviation = 0.002 Å]. It makes dihedral angles of 64.21 (14), 82.35 (12) and 20.66 (13)° with the phenyl ring (C4–C9) and the nitro- and methoxybenzene rings (C10–C15 and C16–C21), respectively.
The bond lengths and bond angles are normal and are similar to the corresponding bond distances and angles reported for similar compound, viz. 1-(4-methoxyphenyl)-4-(4-methylphenyl)-3-phenoxyazetidin-2-one (Akkurt et al., 2011) and 3-(4-chlorophenoxy)-1-(4-methoxyphenyl)-4-(4-nitrophenyl)azetidin-2-one (Butcher et al., 2011).
A weak intramolecular C—H···O hydrogen bond stabilizes the
(Table 1).In the crystal, molecules are linked by C—H···O hydrogen bonds forming slabs lying parallel to (111). The slabs are linked via C—H···π interactions forming a three dimensional network (Table 1 and Fig. 2).
For general properties and applications in medicinal chemistry of four-membered monocyclic aza-heterocycles, see: Bode et al. (1989); Gerona-Navarro et al. (2004); Grafe (1992); Gérard et al. (2004); Mehta et al. (2010); Setti et al. (2005); Singh et al. (2008); Southgate (1994); Sutton et al. (2004); Sperka et al. (2005). For related structures, see: Akkurt et al. (2011); Butcher et al. (2011).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS2014 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. Perspective view of the molecular structure of the title compound, with atom labelling. Displacement ellipsoids are drawn at the 30% probability level. | |
Fig. 2. View of the hydrogen bonding and molecular packing of the title compound along a axis (only H atoms involved in hydrogen bonding are shown; see Table 1 for details). |
C22H18N2O5 | Z = 2 |
Mr = 390.38 | F(000) = 408 |
Triclinic, P1 | Dx = 1.356 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.8044 (3) Å | Cell parameters from 8412 reflections |
b = 10.6483 (3) Å | θ = 2.2–31.2° |
c = 11.1573 (3) Å | µ = 0.10 mm−1 |
α = 66.957 (1)° | T = 296 K |
β = 70.105 (1)° | Prism, colourless |
γ = 65.973 (1)° | 0.30 × 0.20 × 0.15 mm |
V = 956.06 (5) Å3 |
Bruker APEXII CCD diffractometer | 2860 reflections with I > 2σ(I) |
Radiation source: sealed tube | Rint = 0.027 |
Graphite monochromator | θmax = 26.4°, θmin = 2.0° |
φ and ω scans | h = −12→12 |
16870 measured reflections | k = −13→13 |
3586 independent reflections | l = −13→13 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.046 | H-atom parameters constrained |
wR(F2) = 0.125 | w = 1/[σ2(Fo2) + (0.054P)2 + 0.2069P] where P = (Fo2 + 2Fc2)/3 |
S = 1.09 | (Δ/σ)max < 0.001 |
3586 reflections | Δρmax = 0.22 e Å−3 |
257 parameters | Δρmin = −0.17 e Å−3 |
C22H18N2O5 | γ = 65.973 (1)° |
Mr = 390.38 | V = 956.06 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.8044 (3) Å | Mo Kα radiation |
b = 10.6483 (3) Å | µ = 0.10 mm−1 |
c = 11.1573 (3) Å | T = 296 K |
α = 66.957 (1)° | 0.30 × 0.20 × 0.15 mm |
β = 70.105 (1)° |
Bruker APEXII CCD diffractometer | 2860 reflections with I > 2σ(I) |
16870 measured reflections | Rint = 0.027 |
3586 independent reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.125 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.22 e Å−3 |
3586 reflections | Δρmin = −0.17 e Å−3 |
257 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | 0.19496 (17) | 1.0034 (2) | 0.46300 (14) | 0.0891 (6) | |
O2 | 0.50869 (15) | 0.76274 (16) | 0.48302 (11) | 0.0619 (5) | |
O3 | 1.15569 (17) | 0.9287 (2) | 0.20735 (17) | 0.0938 (7) | |
O4 | 1.22134 (17) | 0.7927 (2) | 0.08655 (19) | 0.1013 (8) | |
O5 | 0.20258 (17) | 1.58682 (16) | −0.07766 (16) | 0.0783 (6) | |
N1 | 0.38058 (14) | 1.03204 (17) | 0.26380 (13) | 0.0488 (5) | |
N2 | 1.12538 (18) | 0.86578 (19) | 0.15529 (16) | 0.0629 (6) | |
C1 | 0.3090 (2) | 0.9617 (2) | 0.38519 (16) | 0.0569 (5) | |
C2 | 0.42887 (19) | 0.8176 (2) | 0.37976 (16) | 0.0569 (5) | |
C3 | 0.50356 (17) | 0.90236 (19) | 0.23890 (14) | 0.0450 (5) | |
C4 | 0.6280 (2) | 0.6349 (2) | 0.48961 (17) | 0.0575 (7) | |
C5 | 0.7040 (3) | 0.5907 (3) | 0.5903 (2) | 0.0768 (9) | |
C6 | 0.8249 (3) | 0.4657 (3) | 0.6043 (3) | 0.0928 (10) | |
C7 | 0.8714 (3) | 0.3834 (3) | 0.5201 (3) | 0.0896 (10) | |
C8 | 0.7957 (3) | 0.4277 (3) | 0.4207 (2) | 0.0775 (8) | |
C9 | 0.6737 (2) | 0.5537 (2) | 0.40422 (19) | 0.0663 (7) | |
C10 | 0.66584 (17) | 0.89768 (17) | 0.21679 (14) | 0.0394 (5) | |
C11 | 0.70598 (18) | 0.95456 (19) | 0.28763 (15) | 0.0459 (5) | |
C12 | 0.85691 (19) | 0.94417 (19) | 0.26790 (15) | 0.0477 (5) | |
C13 | 0.96466 (17) | 0.87828 (18) | 0.17624 (15) | 0.0448 (5) | |
C14 | 0.92900 (19) | 0.82065 (19) | 0.10398 (16) | 0.0491 (5) | |
C15 | 0.77834 (18) | 0.83228 (18) | 0.12446 (15) | 0.0452 (5) | |
C16 | 0.33669 (17) | 1.1729 (2) | 0.17642 (16) | 0.0473 (6) | |
C17 | 0.1869 (2) | 1.2640 (2) | 0.1967 (2) | 0.0628 (7) | |
C18 | 0.1477 (2) | 1.4003 (2) | 0.1106 (2) | 0.0687 (8) | |
C19 | 0.2549 (2) | 1.4496 (2) | 0.0030 (2) | 0.0569 (7) | |
C20 | 0.4030 (2) | 1.3594 (2) | −0.01778 (18) | 0.0540 (6) | |
C21 | 0.44279 (18) | 1.2218 (2) | 0.06850 (17) | 0.0505 (6) | |
C22 | 0.3131 (3) | 1.6499 (3) | −0.1745 (3) | 0.0853 (10) | |
H2 | 0.38870 | 0.74890 | 0.37620 | 0.0680* | |
H3 | 0.49120 | 0.87820 | 0.16780 | 0.0540* | |
H5 | 0.67340 | 0.64540 | 0.64820 | 0.0920* | |
H6 | 0.87620 | 0.43620 | 0.67200 | 0.1120* | |
H7 | 0.95330 | 0.29860 | 0.53050 | 0.1070* | |
H8 | 0.82660 | 0.37250 | 0.36340 | 0.0930* | |
H9 | 0.62310 | 0.58320 | 0.33610 | 0.0800* | |
H11 | 0.63100 | 0.99990 | 0.34870 | 0.0550* | |
H12 | 0.88460 | 0.98110 | 0.31580 | 0.0570* | |
H14 | 1.00460 | 0.77530 | 0.04320 | 0.0590* | |
H15 | 0.75150 | 0.79570 | 0.07560 | 0.0540* | |
H17 | 0.11350 | 1.23260 | 0.26840 | 0.0750* | |
H18 | 0.04730 | 1.46060 | 0.12470 | 0.0820* | |
H20 | 0.47610 | 1.39090 | −0.08980 | 0.0650* | |
H21 | 0.54290 | 1.16120 | 0.05350 | 0.0610* | |
H22A | 0.38120 | 1.65160 | −0.13090 | 0.1280* | |
H22B | 0.26230 | 1.74640 | −0.22200 | 0.1280* | |
H22C | 0.37030 | 1.59430 | −0.23600 | 0.1280* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0574 (9) | 0.1347 (15) | 0.0630 (8) | −0.0226 (9) | 0.0108 (7) | −0.0452 (9) |
O2 | 0.0622 (8) | 0.0815 (10) | 0.0467 (6) | −0.0293 (8) | −0.0155 (6) | −0.0135 (6) |
O3 | 0.0683 (10) | 0.1387 (16) | 0.1022 (11) | −0.0573 (11) | −0.0252 (8) | −0.0319 (11) |
O4 | 0.0394 (8) | 0.1325 (16) | 0.1246 (14) | −0.0241 (10) | 0.0052 (9) | −0.0532 (13) |
O5 | 0.0615 (9) | 0.0556 (10) | 0.1099 (11) | −0.0048 (8) | −0.0253 (8) | −0.0250 (8) |
N1 | 0.0310 (7) | 0.0673 (11) | 0.0485 (7) | −0.0124 (7) | −0.0042 (5) | −0.0244 (7) |
N2 | 0.0428 (9) | 0.0751 (12) | 0.0627 (9) | −0.0265 (9) | −0.0142 (7) | −0.0017 (8) |
C1 | 0.0444 (7) | 0.0846 (10) | 0.0485 (6) | −0.0267 (6) | −0.0063 (5) | −0.0231 (7) |
C2 | 0.0444 (7) | 0.0846 (10) | 0.0485 (6) | −0.0267 (6) | −0.0063 (5) | −0.0231 (7) |
C3 | 0.0373 (8) | 0.0606 (12) | 0.0440 (8) | −0.0166 (8) | −0.0094 (6) | −0.0207 (7) |
C4 | 0.0511 (11) | 0.0701 (14) | 0.0490 (9) | −0.0322 (11) | −0.0124 (8) | −0.0003 (9) |
C5 | 0.0813 (15) | 0.0930 (18) | 0.0630 (11) | −0.0416 (15) | −0.0289 (11) | −0.0038 (11) |
C6 | 0.0886 (18) | 0.101 (2) | 0.0842 (16) | −0.0368 (17) | −0.0482 (14) | 0.0097 (15) |
C7 | 0.0692 (15) | 0.0826 (18) | 0.0955 (17) | −0.0272 (14) | −0.0310 (13) | 0.0099 (14) |
C8 | 0.0671 (14) | 0.0733 (16) | 0.0806 (14) | −0.0245 (13) | −0.0168 (11) | −0.0079 (11) |
C9 | 0.0632 (12) | 0.0766 (15) | 0.0600 (11) | −0.0293 (12) | −0.0187 (9) | −0.0090 (10) |
C10 | 0.0349 (8) | 0.0431 (10) | 0.0399 (7) | −0.0114 (7) | −0.0105 (6) | −0.0109 (6) |
C11 | 0.0400 (9) | 0.0550 (11) | 0.0461 (8) | −0.0132 (8) | −0.0083 (7) | −0.0211 (7) |
C12 | 0.0481 (9) | 0.0544 (11) | 0.0488 (8) | −0.0215 (9) | −0.0169 (7) | −0.0123 (7) |
C13 | 0.0349 (8) | 0.0463 (10) | 0.0471 (8) | −0.0154 (8) | −0.0127 (6) | −0.0017 (7) |
C14 | 0.0397 (9) | 0.0520 (11) | 0.0502 (8) | −0.0119 (8) | −0.0041 (7) | −0.0170 (8) |
C15 | 0.0420 (9) | 0.0516 (11) | 0.0470 (8) | −0.0158 (8) | −0.0082 (7) | −0.0197 (7) |
C16 | 0.0325 (8) | 0.0626 (12) | 0.0554 (9) | −0.0097 (8) | −0.0105 (7) | −0.0308 (8) |
C17 | 0.0358 (9) | 0.0778 (15) | 0.0706 (11) | −0.0106 (10) | −0.0028 (8) | −0.0327 (11) |
C18 | 0.0370 (10) | 0.0707 (15) | 0.0918 (14) | 0.0017 (10) | −0.0103 (9) | −0.0401 (12) |
C19 | 0.0453 (10) | 0.0519 (13) | 0.0806 (12) | −0.0058 (9) | −0.0210 (9) | −0.0303 (10) |
C20 | 0.0401 (9) | 0.0593 (13) | 0.0666 (10) | −0.0137 (9) | −0.0116 (8) | −0.0247 (9) |
C21 | 0.0304 (8) | 0.0616 (13) | 0.0609 (9) | −0.0083 (8) | −0.0098 (7) | −0.0261 (9) |
C22 | 0.0902 (17) | 0.0591 (15) | 0.1103 (18) | −0.0270 (13) | −0.0321 (14) | −0.0162 (13) |
O1—C1 | 1.199 (3) | C14—C15 | 1.376 (3) |
O2—C2 | 1.413 (2) | C16—C17 | 1.391 (3) |
O2—C4 | 1.382 (3) | C16—C21 | 1.379 (3) |
O3—N2 | 1.208 (3) | C17—C18 | 1.372 (3) |
O4—N2 | 1.208 (3) | C18—C19 | 1.385 (3) |
O5—C19 | 1.372 (3) | C19—C20 | 1.376 (3) |
O5—C22 | 1.421 (4) | C20—C21 | 1.383 (3) |
N1—C1 | 1.369 (2) | C2—H2 | 0.9800 |
N1—C3 | 1.468 (3) | C3—H3 | 0.9800 |
N1—C16 | 1.414 (2) | C5—H5 | 0.9300 |
N2—C13 | 1.469 (3) | C6—H6 | 0.9300 |
C1—C2 | 1.515 (3) | C7—H7 | 0.9300 |
C2—C3 | 1.570 (2) | C8—H8 | 0.9300 |
C3—C10 | 1.508 (3) | C9—H9 | 0.9300 |
C4—C5 | 1.382 (3) | C11—H11 | 0.9300 |
C4—C9 | 1.377 (3) | C12—H12 | 0.9300 |
C5—C6 | 1.371 (4) | C14—H14 | 0.9300 |
C6—C7 | 1.373 (4) | C15—H15 | 0.9300 |
C7—C8 | 1.367 (4) | C17—H17 | 0.9300 |
C8—C9 | 1.384 (4) | C18—H18 | 0.9300 |
C10—C11 | 1.388 (3) | C20—H20 | 0.9300 |
C10—C15 | 1.388 (2) | C21—H21 | 0.9300 |
C11—C12 | 1.384 (3) | C22—H22A | 0.9600 |
C12—C13 | 1.370 (2) | C22—H22B | 0.9600 |
C13—C14 | 1.379 (3) | C22—H22C | 0.9600 |
C2—O2—C4 | 118.48 (15) | C18—C19—C20 | 119.10 (19) |
C19—O5—C22 | 117.6 (2) | C19—C20—C21 | 119.87 (19) |
C1—N1—C3 | 95.42 (14) | C16—C21—C20 | 121.16 (19) |
C1—N1—C16 | 133.12 (17) | O2—C2—H2 | 113.00 |
C3—N1—C16 | 130.07 (13) | C1—C2—H2 | 113.00 |
O3—N2—O4 | 123.0 (2) | C3—C2—H2 | 113.00 |
O3—N2—C13 | 118.75 (18) | N1—C3—H3 | 111.00 |
O4—N2—C13 | 118.26 (19) | C2—C3—H3 | 111.00 |
O1—C1—N1 | 132.1 (2) | C10—C3—H3 | 111.00 |
O1—C1—C2 | 135.63 (18) | C4—C5—H5 | 120.00 |
N1—C1—C2 | 92.29 (15) | C6—C5—H5 | 120.00 |
O2—C2—C1 | 110.35 (15) | C5—C6—H6 | 119.00 |
O2—C2—C3 | 117.28 (17) | C7—C6—H6 | 120.00 |
C1—C2—C3 | 85.76 (13) | C6—C7—H7 | 120.00 |
N1—C3—C2 | 86.47 (13) | C8—C7—H7 | 120.00 |
N1—C3—C10 | 117.56 (16) | C7—C8—H8 | 120.00 |
C2—C3—C10 | 117.93 (14) | C9—C8—H8 | 120.00 |
O2—C4—C5 | 115.15 (19) | C4—C9—H9 | 120.00 |
O2—C4—C9 | 124.79 (18) | C8—C9—H9 | 120.00 |
C5—C4—C9 | 120.1 (2) | C10—C11—H11 | 120.00 |
C4—C5—C6 | 119.5 (2) | C12—C11—H11 | 120.00 |
C5—C6—C7 | 121.1 (3) | C11—C12—H12 | 121.00 |
C6—C7—C8 | 119.2 (3) | C13—C12—H12 | 121.00 |
C7—C8—C9 | 120.9 (2) | C13—C14—H14 | 121.00 |
C4—C9—C8 | 119.3 (2) | C15—C14—H14 | 121.00 |
C3—C10—C11 | 121.92 (15) | C10—C15—H15 | 119.00 |
C3—C10—C15 | 118.78 (16) | C14—C15—H15 | 119.00 |
C11—C10—C15 | 119.29 (18) | C16—C17—H17 | 120.00 |
C10—C11—C12 | 120.36 (16) | C18—C17—H17 | 120.00 |
C11—C12—C13 | 118.56 (17) | C17—C18—H18 | 119.00 |
N2—C13—C12 | 118.97 (17) | C19—C18—H18 | 119.00 |
N2—C13—C14 | 118.34 (16) | C19—C20—H20 | 120.00 |
C12—C13—C14 | 122.69 (18) | C21—C20—H20 | 120.00 |
C13—C14—C15 | 118.03 (17) | C16—C21—H21 | 119.00 |
C10—C15—C14 | 121.06 (17) | C20—C21—H21 | 119.00 |
N1—C16—C17 | 121.10 (16) | O5—C22—H22A | 109.00 |
N1—C16—C21 | 120.06 (18) | O5—C22—H22B | 109.00 |
C17—C16—C21 | 118.83 (18) | O5—C22—H22C | 109.00 |
C16—C17—C18 | 119.84 (19) | H22A—C22—H22B | 109.00 |
C17—C18—C19 | 121.2 (2) | H22A—C22—H22C | 110.00 |
O5—C19—C18 | 116.24 (19) | H22B—C22—H22C | 109.00 |
O5—C19—C20 | 124.65 (19) | ||
C2—O2—C4—C5 | 177.80 (19) | C2—C3—C10—C15 | 115.35 (17) |
C4—O2—C2—C1 | −176.84 (16) | N1—C3—C10—C11 | 37.9 (2) |
C4—O2—C2—C3 | −81.0 (2) | C2—C3—C10—C11 | −63.5 (2) |
C2—O2—C4—C9 | −1.7 (3) | O2—C4—C5—C6 | −179.5 (2) |
C22—O5—C19—C18 | 169.3 (2) | O2—C4—C9—C8 | 179.7 (2) |
C22—O5—C19—C20 | −12.1 (3) | C9—C4—C5—C6 | 0.0 (4) |
C16—N1—C1—C2 | 169.0 (2) | C5—C4—C9—C8 | 0.2 (3) |
C3—N1—C1—O1 | −178.4 (2) | C4—C5—C6—C7 | −0.2 (5) |
C16—N1—C1—O1 | −11.3 (4) | C5—C6—C7—C8 | 0.2 (5) |
C1—N1—C16—C21 | 170.0 (2) | C6—C7—C8—C9 | 0.0 (5) |
C16—N1—C3—C10 | 70.7 (2) | C7—C8—C9—C4 | −0.2 (4) |
C3—N1—C16—C21 | −26.9 (3) | C3—C10—C11—C12 | 177.87 (15) |
C16—N1—C3—C2 | −169.53 (19) | C11—C10—C15—C14 | 1.2 (2) |
C3—N1—C1—C2 | 1.90 (16) | C15—C10—C11—C12 | −1.0 (2) |
C1—N1—C3—C2 | −1.84 (15) | C3—C10—C15—C14 | −177.68 (15) |
C3—N1—C16—C17 | 152.68 (19) | C10—C11—C12—C13 | 0.7 (3) |
C1—N1—C16—C17 | −10.4 (3) | C11—C12—C13—C14 | −0.7 (3) |
C1—N1—C3—C10 | −121.65 (15) | C11—C12—C13—N2 | −179.56 (16) |
O4—N2—C13—C14 | −7.7 (3) | N2—C13—C14—C15 | 179.77 (16) |
O3—N2—C13—C14 | 172.35 (18) | C12—C13—C14—C15 | 0.9 (3) |
O4—N2—C13—C12 | 171.23 (18) | C13—C14—C15—C10 | −1.2 (3) |
O3—N2—C13—C12 | −8.8 (3) | N1—C16—C21—C20 | −179.51 (18) |
N1—C1—C2—O2 | 115.78 (16) | C17—C16—C21—C20 | 0.9 (3) |
O1—C1—C2—C3 | 178.6 (3) | N1—C16—C17—C18 | 179.76 (18) |
N1—C1—C2—C3 | −1.78 (15) | C21—C16—C17—C18 | −0.6 (3) |
O1—C1—C2—O2 | −63.9 (3) | C16—C17—C18—C19 | 0.0 (3) |
O2—C2—C3—C10 | 10.4 (2) | C17—C18—C19—C20 | 0.4 (3) |
O2—C2—C3—N1 | −109.09 (17) | C17—C18—C19—O5 | 179.1 (2) |
C1—C2—C3—C10 | 121.13 (17) | O5—C19—C20—C21 | −178.7 (2) |
C1—C2—C3—N1 | 1.66 (14) | C18—C19—C20—C21 | −0.1 (3) |
N1—C3—C10—C15 | −143.22 (15) | C19—C20—C21—C16 | −0.5 (3) |
Cg4 is the centroid of the methoxyphenyl ring (C16–C21). |
D—H···A | D—H | H···A | D···A | D—H···A |
C17—H17···O1 | 0.93 | 2.60 | 3.172 (3) | 120 |
C12—H12···O1i | 0.93 | 2.37 | 3.103 (2) | 135 |
C21—H21···O4ii | 0.93 | 2.43 | 3.127 (3) | 132 |
C15—H15···Cg4iii | 0.93 | 2.75 | 3.674 (2) | 173 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+2, −y+2, −z; (iii) −x+1, −y+2, −z. |
Cg4 is the centroid of the methoxyphenyl ring (C16–C21). |
D—H···A | D—H | H···A | D···A | D—H···A |
C17—H17···O1 | 0.93 | 2.60 | 3.172 (3) | 120 |
C12—H12···O1i | 0.93 | 2.37 | 3.103 (2) | 135 |
C21—H21···O4ii | 0.93 | 2.43 | 3.127 (3) | 132 |
C15—H15···Cg4iii | 0.93 | 2.75 | 3.674 (2) | 173 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+2, −y+2, −z; (iii) −x+1, −y+2, −z. |
Acknowledgements
The authors are indebted to the X-ray laboratory of Dicle University Scientific and Technological Applied and Research Center, Diyarbakir, Turkey, for use of the X-ray diffractometer. AJ and HAS thank the Shiraz University Research Council for financial support.
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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.
Four-membered monocyclic aza-heterocycles (Singh, et al., 2008), even more than 70 years after the discovery of penicillin, β-lactam antibiotics remain as one of the most important contributions of science to humanity (Southgate, 1994). β-Lactam antibiotics have been successfully used in the treatment of infectious diseases for many years (Grafe, 1992). Literature survey reveals that 2-azetidinones show to possess other relevant biological activities (Gerona-Navarro et al., 2004). which include human cytomegalovirus (HCMV) inhibitor, (Mehta et al., 2010), human leukocyte elastase (HLE) inhibitor, (Gérard et al., 2004), thrombin inhibitor, (Sutton et al., 2004), porcine pancreatic elastase (PPE) inhibitor, (Bode et al., 1989), HIV-1 protease inhibitor (Sperka et al., 2005), cysteine protease inhibitor (Setti et al., 2005).
In the title compound (Fig. 1), the β-lactam ring (N1/C1–C3) is nearly planar [r.m.s. deviation = 0.002 Å]. It makes dihedral angles of 64.21 (14), 82.35 (12) and 20.66 (13)° with the phenyl ring (C4–C9) and the nitro- and methoxybenzene rings (C10–C15 and C16–C21), respectively.
The bond lengths and bond angles are normal and are similar to the corresponding bond distances and angles reported for similar compound, viz. 1-(4-methoxyphenyl)-4-(4-methylphenyl)-3-phenoxyazetidin-2-one (Akkurt et al., 2011) and 3-(4-chlorophenoxy)-1-(4-methoxyphenyl)-4-(4-nitrophenyl)azetidin-2-one (Butcher et al., 2011).
A weak intramolecular C—H···O hydrogen bond stabilizes the molecular conformation (Table 1).
In the crystal, molecules are linked by C—H···O hydrogen bonds forming slabs lying parallel to (111). The slabs are linked via C—H···π interactions forming a three dimensional network (Table 1 and Fig. 2).