organic compounds
of ethyl 2-[9-(5-bromo-2-hydroxyphenyl)-1,8-dioxo-1,2,3,4,5,6,7,8,9,10-decahydroacridin-10-yl]acetate
aChemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, bChemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt, cDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, dDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA, eChemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt, and fKirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
*Correspondence e-mail: shaabankamel@yahoo.com
In the title compound, C23H24BrNO5, the central 1,4-dihydropyridine ring of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system adopts a half-chair conformation. The two cyclohexene rings fused to the central ring both have a twisted-boat conformation. The mean planes of the bromohydroxyphenyl ring and the major and minor components of the disordered ethyl aminoacetate moiety make dihedral angles of 78.99 (12), 85.9 (2) and 88.3 (9)°, respectively, with the 1,4-dihydropyridine ring. The terminal ethyl group of the ethyl aminoacetate moiety is disordered over two sets of sites with refined occupancies of 0.768 (17) and 0.232 (17). The molecular conformation is stabilized by an intramolecular O—H⋯O hydrogen bond, forming an S(8) ring motif. In the crystal, C—H⋯O hydrogen bonds connect the molecules into layers parallel to (001), enclosing R12(7) ring motifs.
Keywords: crystal structure; acridines; hydroacridinones; hydrogen bonding.
CCDC reference: 1437968
1. Related literature
For biological activities of hydroquinolines, see: Moghadam et al. (2011); Miri et al. (2007). For accridinones, see: Okoro et al. (2012). For dihydropyridines, see: Aydin et al. (2006); Rose (1990, 1991); Rose & Draeger (1992).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: CrysAlis PRO (Agilent, 2014); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS2014 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and PARST (Nardelli, 1995).
Supporting information
CCDC reference: 1437968
https://doi.org/10.1107/S2056989015022240/wm5239sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015022240/wm5239Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015022240/wm5239Isup3.cml
A mixture of 1 mmol (112 mg) of cyclohexane-1,3-dione, 1 mmol (201 mg) of 4-bromo-2-hydroxybenzaldehyde and 1 mmol (103 mg) ethyl 2-aminoacetate in 30 ml ethanol was refluxed at 351 K. The reaction was monitored by TLC until completion. The solid product was deposited on cooling and collected by filtration under vacuum. Recystallization of the crude product from ethanol afforded crystals sufficient for X-ray diffraction. M.p. 515 K.
The hydroxyl hydrogen atom was found from a difference Fourier map and its O—H bond length was restrained using a DFIX restraint of 0.82 (2) Å, with its displacement parameter set equal to 1.5Ueq(O). The other H atoms were placed in calculated positions with C—H = 0.93 - 0.98 Å, and refined as riding with Uiso(H) = 1.2Ueq(C). The terminal ethyl group (C16, C17) of the ethyl aminoacetate moiety is disordered over two sets of sites with an occupancy ratio of 0.768 (17):0.232 (17).
Hydroquinolines (Moghadam et al., 2011; Miri et al., 2007), acridinediones (Okoro et al., 2012) and other anellated dihydropyridines (Aydin et al., 2006; Rose, 1990) were developed that exhibit selective cardial agonist activity while calcium antagonistic effects were observed on smooth musculature (Rose & Draeger, 1992; Rose, 1991). In this context, we report here the synthesis and
of the title compound, C23H24BrNO5, (I).In the structure of (I) (Fig. 1), the central 1,4-dihydropyridine ring (N1/C5–C9) of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system (N1/C1–C13) adopts a half-chair conformation [the puckering parameters are QT = 0.235 (3) Å, θ = 102.0 (7) °, φ = 6.0 (7) °]. The two cyclohexene rings (C1–C6 and C8–C13) of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system have a twisted-boat conformation [the puckering parameters are QT = 0.428 (4) Å, θ = 51.0 (5) °, φ = 109.2 (6) °, and QT = 0.468 (4) Å, θ = 60.6 (4) °, φ = 187.1 (5) °, respectively].
The mean planes of the bromo-hydroxyphenyl ring (C18–C23) and the major and minor components of the disordered ethyl aminoacetate moiety make dihedral angles of 78.99 (12), 85.9 (2) and 88.3 (9)°, respectively, with the 1,4-dihydropyridine ring (N1/C5–C9).
All bond lengths and bond angles in the title molecule are within the normal ranges and comparable with each other and with those obtained earlier for similar compounds.
The
is stabilized by an intramolecular O—H···O hydrogen bond, which generates an S(8) ring motif (Fig. 1, Table 1).In the crystal, molecules are linked by intermolecular C—H···O hydrogen bonds into layers parallel to (001), enclosing R21(7) ring motifs (Table 1, Fig. 2).
For biological activities of hydroquinolines, see: Moghadam et al. (2011); Miri et al. (2007). For accridinones, see: Okoro et al. (2012). For dihydropyridines, see: Aydin et al. (2006); Rose (1990, 1991); Rose & Draeger (1992).
Data collection: CrysAlis PRO (Agilent, 2014); cell
CrysAlis PRO (Agilent, 2014); data reduction: CrysAlis PRO (Agilent, 2014); program(s) used to solve structure: SHELXS2014 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and PARST (Nardelli, 1995).C23H24BrNO5 | F(000) = 1952 |
Mr = 474.33 | Dx = 1.512 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 4787 reflections |
a = 8.8287 (3) Å | θ = 3.7–24.1° |
b = 14.2531 (5) Å | µ = 2.01 mm−1 |
c = 33.1222 (11) Å | T = 293 K |
V = 4168.0 (2) Å3 | Needle, colourless |
Z = 8 | 0.32 × 0.11 × 0.08 mm |
Agilent Xcalibur Eos Gemini diffractometer | 5281 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 3379 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.060 |
Detector resolution: 16.0416 pixels mm-1 | θmax = 28.5°, θmin = 2.9° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | k = −19→19 |
Tmin = 0.579, Tmax = 1.000 | l = −44→44 |
51745 measured reflections |
Refinement on F2 | 1 restraint |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.059 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.153 | w = 1/[σ2(Fo2) + (0.052P)2 + 5.0593P] where P = (Fo2 + 2Fc2)/3 |
S = 1.02 | (Δ/σ)max = 0.001 |
5281 reflections | Δρmax = 0.53 e Å−3 |
281 parameters | Δρmin = −0.59 e Å−3 |
C23H24BrNO5 | V = 4168.0 (2) Å3 |
Mr = 474.33 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 8.8287 (3) Å | µ = 2.01 mm−1 |
b = 14.2531 (5) Å | T = 293 K |
c = 33.1222 (11) Å | 0.32 × 0.11 × 0.08 mm |
Agilent Xcalibur Eos Gemini diffractometer | 5281 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | 3379 reflections with I > 2σ(I) |
Tmin = 0.579, Tmax = 1.000 | Rint = 0.060 |
51745 measured reflections |
R[F2 > 2σ(F2)] = 0.059 | 1 restraint |
wR(F2) = 0.153 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 0.53 e Å−3 |
5281 reflections | Δρmin = −0.59 e Å−3 |
281 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 | Occ. (<1) | |
Br1 | 0.93921 (6) | 0.00364 (4) | 0.25138 (2) | 0.0856 (2) | |
O1 | 0.3868 (3) | −0.27352 (16) | 0.34249 (8) | 0.0639 (9) | |
O2 | 0.3448 (4) | 0.0831 (2) | 0.45391 (9) | 0.0919 (13) | |
O3 | 0.3033 (3) | 0.22761 (18) | 0.43222 (9) | 0.0716 (10) | |
O4 | 0.8428 (3) | −0.19850 (15) | 0.42308 (8) | 0.0626 (9) | |
O5 | 0.6762 (3) | −0.33400 (18) | 0.33476 (10) | 0.0738 (10) | |
N1 | 0.4997 (3) | 0.03570 (15) | 0.38366 (7) | 0.0386 (7) | |
C1 | 0.3472 (4) | −0.1908 (2) | 0.34564 (10) | 0.0487 (11) | |
C2 | 0.1926 (4) | −0.1605 (3) | 0.33252 (13) | 0.0640 (11) | |
C3 | 0.1358 (4) | −0.0829 (3) | 0.35687 (14) | 0.0781 (15) | |
C4 | 0.2432 (4) | −0.0007 (2) | 0.35809 (11) | 0.0545 (11) | |
C5 | 0.4030 (3) | −0.0314 (2) | 0.36740 (9) | 0.0382 (8) | |
C6 | 0.4505 (3) | −0.12057 (19) | 0.36125 (8) | 0.0360 (8) | |
C7 | 0.6109 (3) | −0.15066 (18) | 0.36981 (8) | 0.0347 (8) | |
C8 | 0.6843 (3) | −0.08124 (18) | 0.39812 (8) | 0.0319 (8) | |
C9 | 0.6337 (3) | 0.00739 (18) | 0.40212 (8) | 0.0350 (8) | |
C10 | 0.7157 (4) | 0.0782 (2) | 0.42760 (11) | 0.0526 (11) | |
C11 | 0.8757 (4) | 0.0494 (2) | 0.43624 (13) | 0.0643 (14) | |
C12 | 0.8835 (4) | −0.0486 (2) | 0.45150 (11) | 0.0590 (12) | |
C13 | 0.8066 (3) | −0.1162 (2) | 0.42346 (9) | 0.0410 (9) | |
C14 | 0.4438 (4) | 0.1312 (2) | 0.38959 (10) | 0.0473 (10) | |
C15 | 0.3597 (4) | 0.1431 (2) | 0.42924 (12) | 0.0546 (11) | |
C16A | 0.2173 (11) | 0.2445 (7) | 0.4704 (2) | 0.076 (3) | 0.768 (17) |
C16B | 0.261 (4) | 0.281 (2) | 0.4685 (9) | 0.076 (3) | 0.232 (17) |
C17A | 0.1256 (11) | 0.3290 (10) | 0.4650 (2) | 0.109 (4) | 0.768 (17) |
C17B | 0.108 (5) | 0.271 (3) | 0.4674 (9) | 0.109 (4) | 0.232 (17) |
C18 | 0.7040 (3) | −0.1655 (2) | 0.33158 (9) | 0.0389 (8) | |
C19 | 0.7647 (3) | −0.0892 (2) | 0.31119 (8) | 0.0408 (9) | |
C20 | 0.8555 (4) | −0.1024 (3) | 0.27790 (10) | 0.0544 (10) | |
C21 | 0.8894 (4) | −0.1919 (4) | 0.26418 (11) | 0.0693 (14) | |
C22 | 0.8278 (5) | −0.2668 (3) | 0.28343 (12) | 0.0690 (16) | |
C23 | 0.7340 (4) | −0.2559 (2) | 0.31685 (11) | 0.0539 (11) | |
H2A | 0.19630 | −0.14140 | 0.30440 | 0.0770* | |
H2B | 0.12350 | −0.21310 | 0.33470 | 0.0770* | |
H3A | 0.11830 | −0.10490 | 0.38420 | 0.0940* | |
H3B | 0.03940 | −0.06220 | 0.34600 | 0.0940* | |
H4A | 0.20970 | 0.04340 | 0.37850 | 0.0650* | |
H4B | 0.24150 | 0.03120 | 0.33220 | 0.0650* | |
H5 | 0.584 (3) | −0.327 (4) | 0.3388 (18) | 0.1280* | |
H7 | 0.60600 | −0.21100 | 0.38390 | 0.0420* | |
H10A | 0.71620 | 0.13820 | 0.41370 | 0.0630* | |
H10B | 0.66200 | 0.08620 | 0.45290 | 0.0630* | |
H11A | 0.93530 | 0.05460 | 0.41180 | 0.0770* | |
H11B | 0.91880 | 0.09150 | 0.45620 | 0.0770* | |
H12A | 0.83570 | −0.05180 | 0.47780 | 0.0710* | |
H12B | 0.98880 | −0.06660 | 0.45470 | 0.0710* | |
H14A | 0.37650 | 0.14730 | 0.36750 | 0.0570* | |
H14B | 0.52870 | 0.17430 | 0.38890 | 0.0570* | |
H16B | 0.15260 | 0.19120 | 0.47630 | 0.0910* | 0.768 (17) |
H16C | 0.28690 | 0.25290 | 0.49280 | 0.0910* | 0.768 (17) |
H16D | 0.30410 | 0.25330 | 0.49270 | 0.0910* | 0.232 (17) |
H16E | 0.29200 | 0.34600 | 0.46650 | 0.0910* | 0.232 (17) |
H17A | 0.06790 | 0.34060 | 0.48900 | 0.1640* | 0.768 (17) |
H17B | 0.05800 | 0.32030 | 0.44260 | 0.1640* | 0.768 (17) |
H17C | 0.19080 | 0.38150 | 0.45980 | 0.1640* | 0.768 (17) |
H17D | 0.06370 | 0.30440 | 0.48980 | 0.1640* | 0.232 (17) |
H17E | 0.08130 | 0.20620 | 0.46900 | 0.1640* | 0.232 (17) |
H17F | 0.06960 | 0.29720 | 0.44260 | 0.1640* | 0.232 (17) |
H19 | 0.74390 | −0.02870 | 0.32010 | 0.0490* | |
H21 | 0.95330 | −0.20040 | 0.24220 | 0.0830* | |
H22 | 0.84880 | −0.32690 | 0.27400 | 0.0830* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0760 (3) | 0.1199 (4) | 0.0608 (3) | −0.0183 (3) | 0.0258 (2) | 0.0017 (2) |
O1 | 0.0663 (16) | 0.0464 (14) | 0.0790 (18) | −0.0189 (12) | −0.0077 (13) | −0.0061 (12) |
O2 | 0.128 (3) | 0.0738 (19) | 0.0739 (19) | 0.0340 (19) | 0.0361 (19) | 0.0174 (16) |
O3 | 0.0829 (19) | 0.0565 (15) | 0.0754 (18) | 0.0255 (14) | 0.0114 (14) | −0.0102 (13) |
O4 | 0.0684 (16) | 0.0387 (12) | 0.0806 (17) | 0.0162 (11) | −0.0263 (13) | −0.0053 (11) |
O5 | 0.099 (2) | 0.0375 (13) | 0.085 (2) | 0.0067 (15) | −0.0074 (18) | −0.0181 (13) |
N1 | 0.0388 (12) | 0.0304 (11) | 0.0466 (14) | 0.0060 (10) | −0.0021 (11) | −0.0012 (10) |
C1 | 0.0490 (18) | 0.0478 (19) | 0.0494 (18) | −0.0132 (15) | −0.0033 (15) | 0.0018 (14) |
C2 | 0.0460 (19) | 0.072 (2) | 0.074 (2) | −0.0196 (18) | −0.0144 (18) | 0.009 (2) |
C3 | 0.0402 (19) | 0.110 (3) | 0.084 (3) | 0.001 (2) | −0.011 (2) | −0.010 (3) |
C4 | 0.0366 (15) | 0.065 (2) | 0.062 (2) | 0.0090 (15) | −0.0047 (16) | 0.0018 (17) |
C5 | 0.0347 (14) | 0.0435 (15) | 0.0364 (14) | 0.0027 (12) | 0.0012 (12) | 0.0044 (12) |
C6 | 0.0340 (14) | 0.0395 (15) | 0.0346 (14) | −0.0068 (12) | 0.0003 (11) | 0.0021 (12) |
C7 | 0.0421 (15) | 0.0253 (12) | 0.0366 (14) | 0.0000 (11) | −0.0024 (12) | −0.0011 (11) |
C8 | 0.0349 (13) | 0.0286 (13) | 0.0321 (13) | 0.0009 (11) | 0.0028 (11) | −0.0026 (10) |
C9 | 0.0359 (13) | 0.0326 (14) | 0.0364 (13) | 0.0009 (11) | 0.0022 (11) | 0.0002 (11) |
C10 | 0.056 (2) | 0.0357 (16) | 0.066 (2) | 0.0024 (14) | −0.0072 (17) | −0.0151 (15) |
C11 | 0.058 (2) | 0.052 (2) | 0.083 (3) | −0.0059 (17) | −0.016 (2) | −0.0189 (19) |
C12 | 0.060 (2) | 0.055 (2) | 0.062 (2) | 0.0062 (17) | −0.0251 (18) | −0.0121 (17) |
C13 | 0.0406 (15) | 0.0386 (16) | 0.0437 (16) | 0.0049 (13) | −0.0027 (13) | −0.0018 (13) |
C14 | 0.0518 (18) | 0.0330 (15) | 0.0571 (19) | 0.0108 (14) | −0.0006 (15) | 0.0009 (14) |
C15 | 0.0530 (19) | 0.0468 (19) | 0.064 (2) | 0.0106 (16) | 0.0004 (17) | −0.0051 (17) |
C16A | 0.098 (6) | 0.060 (5) | 0.070 (3) | 0.013 (4) | 0.020 (3) | −0.007 (4) |
C16B | 0.098 (6) | 0.060 (5) | 0.070 (3) | 0.013 (4) | 0.020 (3) | −0.007 (4) |
C17A | 0.133 (6) | 0.134 (9) | 0.061 (3) | 0.085 (7) | 0.011 (3) | −0.005 (5) |
C17B | 0.133 (6) | 0.134 (9) | 0.061 (3) | 0.085 (7) | 0.011 (3) | −0.005 (5) |
C18 | 0.0371 (15) | 0.0423 (15) | 0.0372 (14) | 0.0068 (12) | −0.0072 (12) | −0.0110 (12) |
C19 | 0.0329 (14) | 0.0515 (17) | 0.0379 (15) | 0.0052 (13) | −0.0017 (12) | −0.0068 (13) |
C20 | 0.0393 (16) | 0.083 (2) | 0.0410 (17) | 0.0051 (17) | −0.0019 (14) | −0.0070 (17) |
C21 | 0.050 (2) | 0.111 (3) | 0.0470 (19) | 0.020 (2) | −0.0008 (17) | −0.028 (2) |
C22 | 0.073 (3) | 0.070 (3) | 0.064 (2) | 0.025 (2) | −0.009 (2) | −0.033 (2) |
C23 | 0.057 (2) | 0.0488 (19) | 0.056 (2) | 0.0120 (17) | −0.0086 (17) | −0.0192 (16) |
Br1—C20 | 1.898 (4) | C19—C20 | 1.376 (4) |
O1—C1 | 1.234 (4) | C20—C21 | 1.387 (7) |
O2—C15 | 1.190 (5) | C21—C22 | 1.357 (7) |
O3—C16A | 1.495 (8) | C22—C23 | 1.391 (5) |
O3—C15 | 1.307 (4) | C2—H2B | 0.9700 |
O3—C16B | 1.47 (3) | C2—H2A | 0.9700 |
O4—C13 | 1.216 (4) | C3—H3B | 0.9700 |
O5—C23 | 1.361 (4) | C3—H3A | 0.9700 |
N1—C5 | 1.391 (4) | C4—H4B | 0.9700 |
N1—C9 | 1.392 (4) | C4—H4A | 0.9700 |
N1—C14 | 1.461 (4) | C7—H7 | 0.9800 |
O5—H5 | 0.83 (3) | C10—H10A | 0.9700 |
C1—C2 | 1.496 (5) | C10—H10B | 0.9700 |
C1—C6 | 1.450 (4) | C11—H11A | 0.9700 |
C2—C3 | 1.458 (6) | C11—H11B | 0.9700 |
C3—C4 | 1.508 (5) | C12—H12A | 0.9700 |
C4—C5 | 1.509 (4) | C12—H12B | 0.9700 |
C5—C6 | 1.354 (4) | C14—H14A | 0.9700 |
C6—C7 | 1.507 (4) | C14—H14B | 0.9700 |
C7—C8 | 1.509 (4) | C16A—H16C | 0.9700 |
C7—C18 | 1.524 (4) | C16A—H16B | 0.9700 |
C8—C13 | 1.456 (4) | C16B—H16E | 0.9700 |
C8—C9 | 1.347 (4) | C16B—H16D | 0.9700 |
C9—C10 | 1.502 (4) | C17A—H17C | 0.9600 |
C10—C11 | 1.499 (5) | C17A—H17A | 0.9600 |
C11—C12 | 1.487 (4) | C17A—H17B | 0.9600 |
C12—C13 | 1.501 (4) | C17B—H17D | 0.9600 |
C14—C15 | 1.518 (5) | C17B—H17F | 0.9600 |
C16A—C17A | 1.462 (16) | C17B—H17E | 0.9500 |
C16B—C17B | 1.36 (6) | C19—H19 | 0.9300 |
C18—C23 | 1.403 (4) | C21—H21 | 0.9300 |
C18—C19 | 1.388 (4) | C22—H22 | 0.9300 |
C15—O3—C16A | 113.9 (5) | C2—C3—H3A | 109.00 |
C15—O3—C16B | 129.4 (12) | C2—C3—H3B | 109.00 |
C5—N1—C9 | 119.5 (2) | C3—C4—H4A | 109.00 |
C5—N1—C14 | 119.0 (3) | C5—C4—H4B | 109.00 |
C9—N1—C14 | 119.9 (2) | C3—C4—H4B | 109.00 |
C23—O5—H5 | 110 (4) | H4A—C4—H4B | 108.00 |
O1—C1—C6 | 120.8 (3) | C5—C4—H4A | 109.00 |
C2—C1—C6 | 118.6 (3) | C6—C7—H7 | 107.00 |
O1—C1—C2 | 120.6 (3) | C8—C7—H7 | 107.00 |
C1—C2—C3 | 111.9 (3) | C18—C7—H7 | 107.00 |
C2—C3—C4 | 112.8 (3) | C9—C10—H10A | 109.00 |
C3—C4—C5 | 111.6 (3) | C9—C10—H10B | 109.00 |
C4—C5—C6 | 122.1 (3) | C11—C10—H10A | 109.00 |
N1—C5—C6 | 120.9 (2) | H10A—C10—H10B | 108.00 |
N1—C5—C4 | 117.0 (2) | C11—C10—H10B | 109.00 |
C1—C6—C5 | 120.5 (3) | C10—C11—H11B | 109.00 |
C5—C6—C7 | 122.0 (2) | C10—C11—H11A | 109.00 |
C1—C6—C7 | 117.5 (2) | H11A—C11—H11B | 108.00 |
C6—C7—C8 | 109.5 (2) | C12—C11—H11A | 109.00 |
C6—C7—C18 | 113.0 (2) | C12—C11—H11B | 109.00 |
C8—C7—C18 | 112.1 (2) | C13—C12—H12A | 109.00 |
C9—C8—C13 | 120.7 (2) | C13—C12—H12B | 109.00 |
C7—C8—C13 | 116.9 (2) | H12A—C12—H12B | 108.00 |
C7—C8—C9 | 122.3 (2) | C11—C12—H12A | 109.00 |
C8—C9—C10 | 121.7 (3) | C11—C12—H12B | 109.00 |
N1—C9—C8 | 120.7 (2) | N1—C14—H14A | 109.00 |
N1—C9—C10 | 117.5 (2) | C15—C14—H14A | 109.00 |
C9—C10—C11 | 112.2 (3) | N1—C14—H14B | 109.00 |
C10—C11—C12 | 111.5 (3) | H14A—C14—H14B | 108.00 |
C11—C12—C13 | 111.8 (3) | C15—C14—H14B | 109.00 |
O4—C13—C12 | 120.5 (3) | H16B—C16A—H16C | 108.00 |
O4—C13—C8 | 121.3 (3) | O3—C16A—H16B | 110.00 |
C8—C13—C12 | 118.2 (2) | C17A—C16A—H16C | 110.00 |
N1—C14—C15 | 112.7 (2) | C17A—C16A—H16B | 110.00 |
O3—C15—C14 | 110.8 (3) | O3—C16A—H16C | 110.00 |
O2—C15—O3 | 124.6 (4) | C17B—C16B—H16D | 112.00 |
O2—C15—C14 | 124.6 (3) | C17B—C16B—H16E | 112.00 |
O3—C16A—C17A | 108.1 (6) | O3—C16B—H16E | 112.00 |
O3—C16B—C17B | 100 (2) | O3—C16B—H16D | 111.00 |
C7—C18—C23 | 121.2 (3) | H16D—C16B—H16E | 110.00 |
C7—C18—C19 | 120.3 (2) | H17A—C17A—H17C | 109.00 |
C19—C18—C23 | 118.5 (3) | H17B—C17A—H17C | 110.00 |
C18—C19—C20 | 120.5 (3) | C16A—C17A—H17B | 109.00 |
Br1—C20—C19 | 119.3 (3) | C16A—C17A—H17C | 109.00 |
C19—C20—C21 | 120.9 (4) | C16A—C17A—H17A | 110.00 |
Br1—C20—C21 | 119.8 (3) | H17A—C17A—H17B | 109.00 |
C20—C21—C22 | 118.9 (3) | C16B—C17B—H17D | 109.00 |
C21—C22—C23 | 121.6 (4) | C16B—C17B—H17E | 110.00 |
C18—C23—C22 | 119.5 (3) | H17D—C17B—H17F | 109.00 |
O5—C23—C18 | 121.9 (3) | H17E—C17B—H17F | 110.00 |
O5—C23—C22 | 118.6 (3) | C16B—C17B—H17F | 109.00 |
C3—C2—H2A | 109.00 | H17D—C17B—H17E | 110.00 |
C3—C2—H2B | 109.00 | C20—C19—H19 | 120.00 |
H2A—C2—H2B | 108.00 | C18—C19—H19 | 120.00 |
C1—C2—H2B | 109.00 | C22—C21—H21 | 121.00 |
C1—C2—H2A | 109.00 | C20—C21—H21 | 121.00 |
C4—C3—H3B | 109.00 | C21—C22—H22 | 119.00 |
C4—C3—H3A | 109.00 | C23—C22—H22 | 119.00 |
H3A—C3—H3B | 108.00 | ||
C16A—O3—C15—O2 | 0.7 (6) | C18—C7—C8—C9 | 104.1 (3) |
C16A—O3—C15—C14 | 179.5 (4) | C6—C7—C18—C23 | −102.6 (3) |
C15—O3—C16A—C17A | −163.9 (6) | C6—C7—C18—C19 | 79.3 (3) |
C14—N1—C9—C8 | 177.7 (3) | C6—C7—C8—C9 | −22.1 (3) |
C9—N1—C14—C15 | −81.1 (3) | C18—C7—C8—C13 | −80.4 (3) |
C14—N1—C5—C4 | −1.8 (4) | C7—C8—C13—C12 | 179.1 (3) |
C5—N1—C14—C15 | 84.6 (3) | C9—C8—C13—O4 | 172.3 (3) |
C14—N1—C5—C6 | 179.7 (3) | C7—C8—C9—N1 | 7.6 (4) |
C9—N1—C5—C4 | 164.0 (3) | C7—C8—C9—C10 | −174.6 (3) |
C5—N1—C9—C8 | 12.1 (4) | C7—C8—C13—O4 | −3.3 (4) |
C5—N1—C9—C10 | −165.8 (3) | C13—C8—C9—N1 | −167.8 (2) |
C14—N1—C9—C10 | −0.2 (4) | C9—C8—C13—C12 | −5.2 (4) |
C9—N1—C5—C6 | −14.5 (4) | C13—C8—C9—C10 | 10.0 (4) |
C2—C1—C6—C7 | −173.2 (3) | C8—C9—C10—C11 | 17.9 (4) |
C6—C1—C2—C3 | −33.1 (5) | N1—C9—C10—C11 | −164.2 (3) |
O1—C1—C6—C7 | 5.4 (4) | C9—C10—C11—C12 | −49.8 (4) |
O1—C1—C6—C5 | −175.2 (3) | C10—C11—C12—C13 | 54.3 (4) |
O1—C1—C2—C3 | 148.3 (4) | C11—C12—C13—C8 | −27.2 (4) |
C2—C1—C6—C5 | 6.2 (5) | C11—C12—C13—O4 | 155.2 (3) |
C1—C2—C3—C4 | 54.1 (5) | N1—C14—C15—O3 | −175.9 (3) |
C2—C3—C4—C5 | −48.2 (5) | N1—C14—C15—O2 | 2.8 (5) |
C3—C4—C5—N1 | −157.2 (3) | C7—C18—C19—C20 | 176.5 (3) |
C3—C4—C5—C6 | 21.3 (4) | C23—C18—C19—C20 | −1.7 (4) |
C4—C5—C6—C1 | −0.6 (4) | C7—C18—C23—O5 | 3.0 (5) |
C4—C5—C6—C7 | 178.8 (3) | C7—C18—C23—C22 | −175.7 (3) |
N1—C5—C6—C1 | 177.8 (3) | C19—C18—C23—O5 | −178.8 (3) |
N1—C5—C6—C7 | −2.8 (4) | C19—C18—C23—C22 | 2.5 (5) |
C5—C6—C7—C8 | 19.6 (4) | C18—C19—C20—Br1 | −178.9 (2) |
C1—C6—C7—C8 | −160.9 (2) | C18—C19—C20—C21 | −0.5 (5) |
C5—C6—C7—C18 | −106.0 (3) | Br1—C20—C21—C22 | −179.7 (3) |
C1—C6—C7—C18 | 73.4 (3) | C19—C20—C21—C22 | 1.9 (5) |
C8—C7—C18—C19 | −45.0 (3) | C20—C21—C22—C23 | −1.1 (6) |
C8—C7—C18—C23 | 133.2 (3) | C21—C22—C23—O5 | −179.9 (4) |
C6—C7—C8—C13 | 153.5 (2) | C21—C22—C23—C18 | −1.1 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5···O1 | 0.83 (3) | 1.91 (3) | 2.709 (4) | 163 (6) |
C7—H7···O5 | 0.98 | 2.47 | 2.917 (4) | 107 |
C10—H10A···O4i | 0.97 | 2.41 | 3.228 (4) | 142 |
C14—H14B···O4i | 0.97 | 2.42 | 3.267 (4) | 146 |
Symmetry code: (i) −x+3/2, y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5···O1 | 0.83 (3) | 1.91 (3) | 2.709 (4) | 163 (6) |
C10—H10A···O4i | 0.97 | 2.41 | 3.228 (4) | 142 |
C14—H14B···O4i | 0.97 | 2.42 | 3.267 (4) | 146 |
Symmetry code: (i) −x+3/2, y+1/2, z. |
Acknowledgements
JPJ acknowledges the NSF–MRI program (grant No. CHE-1039027) for funds to purchase the X-ray diffractometer.
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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.
Hydroquinolines (Moghadam et al., 2011; Miri et al., 2007), acridinediones (Okoro et al., 2012) and other anellated dihydropyridines (Aydin et al., 2006; Rose, 1990) were developed that exhibit selective cardial agonist activity while calcium antagonistic effects were observed on smooth musculature (Rose & Draeger, 1992; Rose, 1991). In this context, we report here the synthesis and crystal structure of the title compound, C23H24BrNO5, (I).
In the structure of (I) (Fig. 1), the central 1,4-dihydropyridine ring (N1/C5–C9) of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system (N1/C1–C13) adopts a half-chair conformation [the puckering parameters are QT = 0.235 (3) Å, θ = 102.0 (7) °, φ = 6.0 (7) °]. The two cyclohexene rings (C1–C6 and C8–C13) of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system have a twisted-boat conformation [the puckering parameters are QT = 0.428 (4) Å, θ = 51.0 (5) °, φ = 109.2 (6) °, and QT = 0.468 (4) Å, θ = 60.6 (4) °, φ = 187.1 (5) °, respectively].
The mean planes of the bromo-hydroxyphenyl ring (C18–C23) and the major and minor components of the disordered ethyl aminoacetate moiety make dihedral angles of 78.99 (12), 85.9 (2) and 88.3 (9)°, respectively, with the 1,4-dihydropyridine ring (N1/C5–C9).
All bond lengths and bond angles in the title molecule are within the normal ranges and comparable with each other and with those obtained earlier for similar compounds.
The molecular conformation is stabilized by an intramolecular O—H···O hydrogen bond, which generates an S(8) ring motif (Fig. 1, Table 1).
In the crystal, molecules are linked by intermolecular C—H···O hydrogen bonds into layers parallel to (001), enclosing R21(7) ring motifs (Table 1, Fig. 2).