organic compounds
2-(Benzyloxy)isoquinoline-1,3(2H,4H)-dione
aSchool of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
*Correspondence e-mail: ishi206@u-shizuoka-ken.ac.jp
The title compound, C16H13NO3, exists in the keto form and the isoquinoline system is essentially planar (mean deviation = 0.0424 Å). The dihedral angle between the aromatic rings is 4.2 (2)°. In the crystal, molecules are linked via weak C—H⋯O hydrogen bonds and C—H⋯π interactions, forming a three-dimensional structure.
Related literature
For the biological properties of the title compound, see: Parkes et al. (2003); Sun et al. (2005); Hang et al. (2004); Billamboz et al. (2008). For related structures, see: Ishikawa & Matsuo (2013); Lee et al. (2008).
Experimental
Crystal data
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Data collection: WinAFC Diffractometer Control Software (Rigaku, 1999); cell WinAFC Diffractometer Control Software; data reduction: WinAFC Diffractometer Control Software; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku, 2010); software used to prepare material for publication: CrystalStructure.
Supporting information
10.1107/S1600536813019934/zl2556sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813019934/zl2556Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813019934/zl2556Isup3.cml
The title compound was synthesized according to the literature (Billamboz et al., 2008). Single crystals suitable for X-ray diffraction were obtained by slow evaporation of an ethyl acetate solution of the compound at room temperature.
The phenyl protons of the isoquinoline ring [C—H = 0.95 Å, Uiso(H) = 1.2Ueq(C)] and the methylene protons of the benzyl group [C—H = 0.99 Å, Uiso(H) = 1.2Ueq(C)] were placed in geometrical positions, and refined using a riding model. The methylene protons of the isoquinoline ring were found in a difference Fourier map, and also refined using a riding model [C—H = 0.99 Å, Uiso(H) = 1.2Ueq(C)].
Data collection: WinAFC Diffractometer Control Software (Rigaku, 1999); cell
WinAFC Diffractometer Control Software (Rigaku, 1999); data reduction: WinAFC Diffractometer Control Software (Rigaku, 1999); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku, 2010); software used to prepare material for publication: CrystalStructure (Rigaku, 2010).Fig. 1. The molecular structure of the title compound, with displacement ellipsoids drawn at the 50% probability level. H atoms are shown as small spheres of arbitrary radius. | |
Fig. 2. A crystal packing view of the title compound. Intermolecular C–H···O hydrogen bonds are represented as dashed lines. |
C16H13NO3 | F(000) = 560.00 |
Mr = 267.28 | Dx = 1.387 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71069 Å |
Hall symbol: P 2c -2n | Cell parameters from 24 reflections |
a = 7.677 (4) Å | θ = 12.7–16.5° |
b = 12.003 (10) Å | µ = 0.10 mm−1 |
c = 13.885 (10) Å | T = 100 K |
V = 1279.4 (15) Å3 | Block, colourless |
Z = 4 | 0.50 × 0.18 × 0.13 mm |
Rigaku AFC-7R diffractometer | Rint = 0.081 |
ω/2θ scans | θmax = 27.5° |
Absorption correction: ψ scan (North et al., 1968) | h = −5→9 |
Tmin = 0.262, Tmax = 0.988 | k = −8→15 |
2451 measured reflections | l = −18→10 |
1756 independent reflections | 3 standard reflections every 150 reflections |
1191 reflections with F2 > 2σ(F2) | intensity decay: 1.0% |
Refinement on F2 | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.069 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.212 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.1324P)2 + 0.3682P] where P = (Fo2 + 2Fc2)/3 |
1756 reflections | (Δ/σ)max < 0.001 |
182 parameters | Δρmax = 0.36 e Å−3 |
1 restraint | Δρmin = −0.39 e Å−3 |
Primary atom site location: structure-invariant direct methods |
C16H13NO3 | V = 1279.4 (15) Å3 |
Mr = 267.28 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 7.677 (4) Å | µ = 0.10 mm−1 |
b = 12.003 (10) Å | T = 100 K |
c = 13.885 (10) Å | 0.50 × 0.18 × 0.13 mm |
Rigaku AFC-7R diffractometer | 1191 reflections with F2 > 2σ(F2) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.081 |
Tmin = 0.262, Tmax = 0.988 | 3 standard reflections every 150 reflections |
2451 measured reflections | intensity decay: 1.0% |
1756 independent reflections |
R[F2 > 2σ(F2)] = 0.069 | 1 restraint |
wR(F2) = 0.212 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.36 e Å−3 |
1756 reflections | Δρmin = −0.39 e Å−3 |
182 parameters |
Refinement. Refinement was performed using all reflections. The weighted R-factor (wR) and goodness of fit (S) are based on F2. R-factor (gt) are based on F. The threshold expression of F2 > 2.0 σ(F2) is used only for calculating R-factor (gt). |
x | y | z | Uiso*/Ueq | ||
O18 | 0.3591 (6) | 0.8028 (4) | 0.3730 (4) | 0.0355 (13) | |
O19 | 0.1647 (6) | 0.4679 (4) | 0.2670 (4) | 0.0339 (12) | |
O20 | 0.2975 (6) | 0.6634 (4) | 0.2295 (3) | 0.0260 (11) | |
N17 | 0.2641 (7) | 0.6331 (4) | 0.3243 (4) | 0.0240 (12) | |
C1 | 0.2937 (8) | 0.7121 (5) | 0.3953 (5) | 0.0240 (14) | |
C2 | 0.1810 (7) | 0.5289 (5) | 0.3351 (5) | 0.0207 (14) | |
C3 | 0.1218 (8) | 0.5009 (5) | 0.4351 (5) | 0.0251 (14) | |
C4 | 0.1467 (8) | 0.5476 (5) | 0.6103 (5) | 0.0275 (15) | |
C5 | 0.1916 (9) | 0.6178 (5) | 0.6834 (5) | 0.0282 (15) | |
C6 | 0.2712 (9) | 0.7203 (6) | 0.6642 (5) | 0.0308 (16) | |
C7 | 0.3035 (9) | 0.7490 (6) | 0.5712 (5) | 0.0291 (16) | |
C8 | 0.1770 (7) | 0.5759 (5) | 0.5142 (5) | 0.0199 (13) | |
C9 | 0.2574 (8) | 0.6785 (5) | 0.4957 (6) | 0.0223 (13) | |
C10 | 0.4704 (9) | 0.6278 (6) | 0.2021 (5) | 0.0314 (16) | |
C11 | 0.4750 (8) | 0.6293 (5) | 0.0941 (5) | 0.0242 (15) | |
C12 | 0.5520 (8) | 0.7162 (5) | 0.0431 (5) | 0.0263 (15) | |
C13 | 0.5527 (9) | 0.7163 (5) | −0.0557 (5) | 0.0278 (15) | |
C14 | 0.4772 (8) | 0.6294 (6) | −0.1066 (5) | 0.0307 (16) | |
C15 | 0.3991 (8) | 0.5420 (6) | −0.0573 (6) | 0.0314 (16) | |
C16 | 0.3984 (8) | 0.5424 (5) | 0.0420 (5) | 0.0288 (15) | |
H21A | −0.0071 | 0.4982 | 0.4349 | 0.0302* | |
H22B | 0.1636 | 0.4249 | 0.4504 | 0.0302* | |
H23 | 0.0936 | 0.4782 | 0.6251 | 0.0331* | |
H24 | 0.1686 | 0.5968 | 0.7481 | 0.0338* | |
H25 | 0.3022 | 0.7690 | 0.7154 | 0.0370* | |
H26 | 0.3584 | 0.8181 | 0.5575 | 0.0350* | |
H27A | 0.4939 | 0.5518 | 0.2266 | 0.0376* | |
H28B | 0.5591 | 0.6791 | 0.2288 | 0.0376* | |
H29 | 0.6047 | 0.7760 | 0.0771 | 0.0315* | |
H30 | 0.6052 | 0.7764 | −0.0895 | 0.0334* | |
H31 | 0.4789 | 0.6296 | −0.1750 | 0.0368* | |
H32 | 0.3466 | 0.4824 | −0.0917 | 0.0376* | |
H33 | 0.3449 | 0.4825 | 0.0756 | 0.0346* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O18 | 0.046 (3) | 0.020 (3) | 0.041 (3) | −0.007 (2) | 0.008 (3) | 0.001 (3) |
O19 | 0.035 (3) | 0.026 (3) | 0.040 (3) | −0.005 (2) | −0.004 (3) | −0.012 (3) |
O20 | 0.026 (3) | 0.027 (3) | 0.025 (3) | 0.0063 (18) | −0.002 (2) | 0.002 (2) |
N17 | 0.026 (3) | 0.021 (3) | 0.026 (3) | −0.003 (3) | 0.000 (3) | −0.000 (3) |
C1 | 0.016 (3) | 0.018 (3) | 0.038 (4) | 0.004 (3) | 0.006 (3) | −0.002 (3) |
C2 | 0.013 (3) | 0.022 (3) | 0.027 (4) | 0.005 (3) | 0.000 (3) | −0.006 (3) |
C3 | 0.027 (3) | 0.015 (3) | 0.033 (4) | 0.002 (3) | 0.002 (4) | −0.004 (3) |
C4 | 0.023 (4) | 0.019 (4) | 0.040 (5) | −0.001 (3) | −0.001 (3) | 0.002 (3) |
C5 | 0.025 (4) | 0.033 (4) | 0.027 (4) | 0.004 (3) | 0.005 (3) | −0.000 (4) |
C6 | 0.031 (4) | 0.027 (4) | 0.034 (5) | −0.001 (3) | −0.000 (3) | −0.011 (4) |
C7 | 0.028 (4) | 0.021 (3) | 0.039 (4) | −0.003 (3) | 0.003 (3) | −0.003 (4) |
C8 | 0.016 (3) | 0.014 (3) | 0.030 (4) | 0.005 (3) | 0.005 (3) | −0.001 (3) |
C9 | 0.015 (3) | 0.017 (3) | 0.035 (4) | 0.003 (3) | 0.004 (3) | 0.004 (3) |
C10 | 0.024 (4) | 0.034 (4) | 0.036 (4) | 0.001 (3) | −0.006 (3) | 0.003 (4) |
C11 | 0.016 (3) | 0.021 (4) | 0.036 (4) | 0.006 (3) | 0.002 (3) | −0.002 (3) |
C12 | 0.021 (4) | 0.017 (3) | 0.041 (4) | 0.001 (3) | 0.003 (4) | −0.002 (3) |
C13 | 0.028 (4) | 0.024 (4) | 0.031 (4) | 0.001 (3) | −0.001 (3) | 0.001 (3) |
C14 | 0.030 (4) | 0.035 (4) | 0.026 (4) | 0.013 (3) | −0.004 (3) | −0.007 (4) |
C15 | 0.024 (4) | 0.029 (4) | 0.040 (5) | 0.008 (3) | −0.001 (4) | −0.008 (4) |
C16 | 0.026 (4) | 0.019 (3) | 0.042 (5) | −0.002 (3) | −0.000 (4) | 0.003 (3) |
O18—C1 | 1.238 (8) | C12—C13 | 1.372 (10) |
O19—C2 | 1.203 (8) | C13—C14 | 1.387 (9) |
O20—N17 | 1.389 (7) | C14—C15 | 1.388 (10) |
O20—C10 | 1.445 (8) | C15—C16 | 1.379 (10) |
N17—C1 | 1.388 (9) | C3—H21A | 0.990 |
N17—C2 | 1.411 (8) | C3—H22B | 0.990 |
C1—C9 | 1.478 (10) | C4—H23 | 0.950 |
C2—C3 | 1.499 (9) | C5—H24 | 0.950 |
C3—C8 | 1.482 (9) | C6—H25 | 0.950 |
C4—C5 | 1.362 (10) | C7—H26 | 0.950 |
C4—C8 | 1.397 (9) | C10—H27A | 0.990 |
C5—C6 | 1.399 (9) | C10—H28B | 0.990 |
C6—C7 | 1.360 (10) | C12—H29 | 0.950 |
C7—C9 | 1.392 (10) | C13—H30 | 0.950 |
C8—C9 | 1.401 (8) | C14—H31 | 0.950 |
C10—C11 | 1.500 (9) | C15—H32 | 0.950 |
C11—C12 | 1.392 (9) | C16—H33 | 0.950 |
C11—C16 | 1.400 (9) | ||
O18···O20 | 2.644 (7) | C12···H22Bxii | 3.2667 |
O18···C2 | 3.599 (8) | C12···H22Bviii | 3.0478 |
O18···C7 | 2.860 (9) | C12···H23xii | 3.5261 |
O18···C10 | 3.281 (8) | C12···H29v | 3.4674 |
O19···O20 | 2.611 (6) | C13···H21Axii | 3.4039 |
O19···C1 | 3.571 (8) | C13···H22Bxii | 3.0049 |
O19···C10 | 3.162 (8) | C13···H22Bviii | 2.7609 |
O20···C12 | 3.304 (8) | C13···H30v | 3.4683 |
O20···C16 | 3.081 (8) | C14···H22Bviii | 2.9417 |
N17···C8 | 2.806 (9) | C14···H24xiii | 3.1364 |
N17···C11 | 3.582 (9) | C14···H25xiii | 3.2749 |
C1···C3 | 2.912 (9) | C14···H27Aviii | 3.1855 |
C1···C10 | 3.172 (10) | C14···H30v | 3.0805 |
C2···C9 | 2.922 (9) | C15···H21Aii | 3.0498 |
C2···C10 | 3.123 (9) | C15···H22Bviii | 3.3817 |
C4···C7 | 2.754 (10) | C15···H24xiii | 3.2965 |
C5···C9 | 2.753 (10) | C15···H27Aviii | 3.3091 |
C6···C8 | 2.805 (9) | C15···H30v | 3.1688 |
C11···C14 | 2.787 (10) | C16···H21Aii | 3.3870 |
C12···C15 | 2.773 (10) | C16···H26iii | 3.3432 |
C13···C16 | 2.757 (9) | C16···H29v | 3.1734 |
O18···N17i | 3.273 (7) | H21A···O18v | 2.7383 |
O18···C1i | 3.356 (8) | H21A···C13ix | 3.4039 |
O18···C2i | 3.235 (8) | H21A···C15vi | 3.0498 |
O18···C3i | 3.220 (8) | H21A···C16vi | 3.3870 |
O18···C8i | 3.453 (8) | H21A···H24ii | 3.0922 |
O18···C9i | 3.507 (8) | H21A···H26v | 2.9708 |
O19···C4ii | 3.237 (8) | H21A···H29ix | 3.4020 |
O19···C5ii | 3.144 (8) | H21A···H30ix | 2.7873 |
O19···C6iii | 3.334 (8) | H21A···H32vi | 2.6426 |
O19···C14iv | 3.465 (8) | H21A···H33vi | 3.2553 |
O20···C10v | 3.567 (8) | H22B···C11iv | 3.4786 |
O20···C12v | 3.512 (8) | H22B···C12ix | 3.2667 |
N17···O18v | 3.273 (7) | H22B···C12iv | 3.0478 |
C1···O18v | 3.356 (8) | H22B···C13ix | 3.0049 |
C2···O18v | 3.235 (8) | H22B···C13iv | 2.7609 |
C2···C14iv | 3.339 (9) | H22B···C14iv | 2.9417 |
C3···O18v | 3.220 (8) | H22B···C15iv | 3.3817 |
C3···C14iv | 3.501 (9) | H22B···H29ix | 3.2450 |
C4···O19vi | 3.237 (8) | H22B···H29iv | 3.4746 |
C5···O19vi | 3.144 (8) | H22B···H30ix | 2.7823 |
C6···O19vii | 3.334 (8) | H22B···H30iv | 3.0485 |
C8···O18v | 3.453 (8) | H22B···H31iv | 3.3152 |
C8···C16iv | 3.576 (9) | H23···O19vi | 2.8692 |
C9···O18v | 3.507 (8) | H23···C2vi | 3.6000 |
C10···O20i | 3.567 (8) | H23···C11iv | 3.5800 |
C12···O20i | 3.512 (8) | H23···C12ix | 3.5261 |
C14···O19viii | 3.465 (8) | H23···H26v | 3.1810 |
C14···C2viii | 3.339 (9) | H23···H27Aiv | 3.4851 |
C14···C3viii | 3.501 (9) | H23···H28Biv | 3.5703 |
C16···C8viii | 3.576 (9) | H23···H29ix | 2.9408 |
O18···H26 | 2.5693 | H23···H33vi | 3.4679 |
O18···H28B | 2.9272 | H24···O19vi | 2.6864 |
O19···H21A | 2.7032 | H24···C2vi | 3.3076 |
O19···H22B | 2.5992 | H24···C14xi | 3.1364 |
O19···H27A | 2.7774 | H24···C15xi | 3.2965 |
O19···H33 | 3.0006 | H24···H21Avi | 3.0922 |
O20···H29 | 3.4447 | H24···H25v | 3.2725 |
O20···H33 | 3.0680 | H24···H27Aiv | 3.1607 |
N17···H21A | 3.0517 | H24···H30x | 2.7632 |
N17···H22B | 3.1476 | H24···H31xi | 2.6402 |
N17···H27A | 2.4292 | H24···H32xi | 2.9496 |
N17···H28B | 2.6821 | H25···O19vii | 2.5062 |
C1···H21A | 3.4970 | H25···C2vii | 3.5380 |
C1···H26 | 2.6337 | H25···C5i | 3.3133 |
C1···H27A | 3.3989 | H25···C14xi | 3.2749 |
C1···H28B | 3.1074 | H25···H24i | 3.2725 |
C2···H27A | 2.8484 | H25···H30xi | 3.5721 |
C3···H23 | 2.6606 | H25···H30x | 3.1509 |
C4···H21A | 2.7715 | H25···H31xi | 2.6373 |
C4···H22B | 2.6683 | H25···H31x | 3.1564 |
C4···H25 | 3.2573 | H25···H33vii | 3.4076 |
C5···H26 | 3.2367 | H26···O19vii | 3.4239 |
C6···H23 | 3.2552 | H26···C3i | 3.4205 |
C7···H24 | 3.2315 | H26···C4i | 2.8340 |
C8···H24 | 3.2589 | H26···C5i | 3.1922 |
C8···H26 | 3.2792 | H26···C6i | 3.5289 |
C9···H21A | 3.0855 | H26···C7i | 3.5159 |
C9···H22B | 3.1913 | H26···C8i | 2.8223 |
C9···H23 | 3.2542 | H26···C9i | 3.1811 |
C9···H25 | 3.2556 | H26···C16vii | 3.3432 |
C10···H29 | 2.6909 | H26···H21Ai | 2.9708 |
C10···H33 | 2.6560 | H26···H23i | 3.1810 |
C11···H30 | 3.2581 | H26···H32vii | 3.2649 |
C11···H32 | 3.2770 | H26···H33vii | 2.5284 |
C12···H27A | 3.2528 | H27A···C4viii | 3.4128 |
C12···H28B | 2.6163 | H27A···C5viii | 3.2149 |
C12···H31 | 3.2506 | H27A···C14iv | 3.1855 |
C12···H33 | 3.2552 | H27A···C15iv | 3.3091 |
C13···H32 | 3.2611 | H27A···H23viii | 3.4851 |
C14···H29 | 3.2500 | H27A···H24viii | 3.1607 |
C14···H33 | 3.2461 | H27A···H31iv | 2.5797 |
C15···H30 | 3.2584 | H27A···H32iv | 2.8344 |
C16···H27A | 2.6682 | H28B···O18i | 3.0594 |
C16···H28B | 3.3079 | H28B···O20i | 2.6303 |
C16···H29 | 3.2576 | H28B···N17i | 3.0521 |
C16···H31 | 3.2488 | H28B···C1i | 3.2085 |
H21A···H23 | 2.7623 | H28B···H23viii | 3.5703 |
H22B···H23 | 2.5650 | H28B···H32iv | 3.2401 |
H23···H24 | 2.2976 | H29···O20i | 2.6822 |
H24···H25 | 2.3513 | H29···C10i | 3.4963 |
H25···H26 | 2.3102 | H29···C11i | 3.0703 |
H27A···H29 | 3.5035 | H29···C12i | 3.4674 |
H27A···H33 | 2.5284 | H29···C16i | 3.1734 |
H28B···H29 | 2.4309 | H29···H21Axii | 3.4020 |
H28B···H33 | 3.5769 | H29···H22Bxii | 3.2450 |
H29···H30 | 2.3133 | H29···H22Bviii | 3.4746 |
H30···H31 | 2.3353 | H29···H23xii | 2.9408 |
H31···H32 | 2.3427 | H29···H33i | 3.4347 |
H32···H33 | 2.3236 | H30···C3xii | 3.2264 |
O18···H21Ai | 2.7383 | H30···C5xiv | 3.4640 |
O18···H28Bv | 3.0594 | H30···C13i | 3.4683 |
O18···H32vii | 2.7174 | H30···C14i | 3.0805 |
O19···H23ii | 2.8692 | H30···C15i | 3.1688 |
O19···H24ii | 2.6864 | H30···H21Axii | 2.7873 |
O19···H25iii | 2.5062 | H30···H22Bxii | 2.7823 |
O19···H26iii | 3.4239 | H30···H22Bviii | 3.0485 |
O19···H31iv | 3.0836 | H30···H24xiv | 2.7632 |
O20···H28Bv | 2.6303 | H30···H25xiii | 3.5721 |
O20···H29v | 2.6822 | H30···H25xiv | 3.1509 |
N17···H28Bv | 3.0521 | H30···H31i | 3.3032 |
N17···H32iv | 3.4949 | H30···H32i | 3.4373 |
C1···H28Bv | 3.2085 | H31···O19viii | 3.0836 |
C1···H32vii | 3.4231 | H31···C2viii | 3.2337 |
C2···H23ii | 3.6000 | H31···C5xiii | 2.9585 |
C2···H24ii | 3.3076 | H31···C6xiii | 2.9513 |
C2···H25iii | 3.5380 | H31···C10viii | 3.5514 |
C2···H31iv | 3.2337 | H31···H22Bviii | 3.3152 |
C3···H26v | 3.4205 | H31···H24xiii | 2.6402 |
C3···H30ix | 3.2264 | H31···H25xiii | 2.6373 |
C4···H26v | 2.8340 | H31···H25xiv | 3.1564 |
C4···H27Aiv | 3.4128 | H31···H27Aviii | 2.5797 |
C5···H25v | 3.3133 | H31···H30v | 3.3032 |
C5···H26v | 3.1922 | H32···O18iii | 2.7174 |
C5···H27Aiv | 3.2149 | H32···N17viii | 3.4949 |
C5···H30x | 3.4640 | H32···C1iii | 3.4231 |
C5···H31xi | 2.9585 | H32···C10viii | 3.4525 |
C6···H26v | 3.5289 | H32···H21Aii | 2.6426 |
C6···H31xi | 2.9513 | H32···H24xiii | 2.9496 |
C6···H33vii | 3.4955 | H32···H26iii | 3.2649 |
C7···H26v | 3.5159 | H32···H27Aviii | 2.8344 |
C7···H33vii | 3.0267 | H32···H28Bviii | 3.2401 |
C8···H26v | 2.8223 | H32···H30v | 3.4373 |
C9···H26v | 3.1811 | H33···C6iii | 3.4955 |
C10···H29v | 3.4963 | H33···C7iii | 3.0267 |
C10···H31iv | 3.5514 | H33···H21Aii | 3.2553 |
C10···H32iv | 3.4525 | H33···H23ii | 3.4679 |
C11···H22Bviii | 3.4786 | H33···H25iii | 3.4076 |
C11···H23viii | 3.5800 | H33···H26iii | 2.5284 |
C11···H29v | 3.0703 | H33···H29v | 3.4347 |
N17—O20—C10 | 109.9 (5) | C11—C16—C15 | 121.2 (6) |
O20—N17—C1 | 117.6 (5) | C2—C3—H21A | 107.914 |
O20—N17—C2 | 114.7 (5) | C2—C3—H22B | 107.913 |
C1—N17—C2 | 127.1 (6) | C8—C3—H21A | 107.922 |
O18—C1—N17 | 119.3 (6) | C8—C3—H22B | 107.920 |
O18—C1—C9 | 123.6 (6) | H21A—C3—H22B | 107.196 |
N17—C1—C9 | 116.9 (6) | C5—C4—H23 | 119.363 |
O19—C2—N17 | 120.1 (6) | C8—C4—H23 | 119.352 |
O19—C2—C3 | 124.0 (6) | C4—C5—H24 | 119.596 |
N17—C2—C3 | 115.8 (5) | C6—C5—H24 | 119.593 |
C2—C3—C8 | 117.6 (5) | C5—C6—H25 | 120.560 |
C5—C4—C8 | 121.3 (6) | C7—C6—H25 | 120.552 |
C4—C5—C6 | 120.8 (7) | C6—C7—H26 | 119.495 |
C5—C6—C7 | 118.9 (7) | C9—C7—H26 | 119.505 |
C6—C7—C9 | 121.0 (7) | O20—C10—H27A | 110.462 |
C3—C8—C4 | 120.8 (6) | O20—C10—H28B | 110.463 |
C3—C8—C9 | 121.6 (6) | C11—C10—H27A | 110.467 |
C4—C8—C9 | 117.5 (6) | C11—C10—H28B | 110.470 |
C1—C9—C7 | 119.8 (6) | H27A—C10—H28B | 108.651 |
C1—C9—C8 | 119.7 (6) | C11—C12—H29 | 119.632 |
C7—C9—C8 | 120.5 (7) | C13—C12—H29 | 119.618 |
O20—C10—C11 | 106.3 (5) | C12—C13—H30 | 119.774 |
C10—C11—C12 | 121.8 (6) | C14—C13—H30 | 119.782 |
C10—C11—C16 | 119.9 (6) | C13—C14—H31 | 120.076 |
C12—C11—C16 | 118.3 (6) | C15—C14—H31 | 120.079 |
C11—C12—C13 | 120.7 (6) | C14—C15—H32 | 120.249 |
C12—C13—C14 | 120.4 (6) | C16—C15—H32 | 120.252 |
C13—C14—C15 | 119.8 (7) | C11—C16—H33 | 119.416 |
C14—C15—C16 | 119.5 (7) | C15—C16—H33 | 119.405 |
N17—O20—C10—C11 | 162.1 (4) | C5—C6—C7—H26 | −179.5 |
N17—O20—C10—H27A | 42.2 | H25—C6—C7—C9 | −179.5 |
N17—O20—C10—H28B | −78.0 | H25—C6—C7—H26 | 0.5 |
C10—O20—N17—C1 | 95.6 (5) | C6—C7—C9—C1 | 179.9 (6) |
C10—O20—N17—C2 | −92.6 (5) | C6—C7—C9—C8 | −0.3 (9) |
O20—N17—C1—O18 | −4.9 (8) | H26—C7—C9—C1 | −0.1 |
O20—N17—C1—C9 | 179.9 (4) | H26—C7—C9—C8 | 179.7 |
O20—N17—C2—O19 | 9.4 (7) | C3—C8—C9—C1 | −2.0 (8) |
O20—N17—C2—C3 | −172.1 (4) | C3—C8—C9—C7 | 178.1 (5) |
C1—N17—C2—O19 | −179.7 (5) | C4—C8—C9—C1 | 179.5 (5) |
C1—N17—C2—C3 | −1.2 (8) | C4—C8—C9—C7 | −0.3 (8) |
C2—N17—C1—O18 | −175.6 (5) | O20—C10—C11—C12 | 100.9 (6) |
C2—N17—C1—C9 | 9.2 (9) | O20—C10—C11—C16 | −78.3 (6) |
O18—C1—C9—C7 | −2.5 (9) | H27A—C10—C11—C12 | −139.2 |
O18—C1—C9—C8 | 177.6 (5) | H27A—C10—C11—C16 | 41.6 |
N17—C1—C9—C7 | 172.4 (5) | H28B—C10—C11—C12 | −19.0 |
N17—C1—C9—C8 | −7.4 (8) | H28B—C10—C11—C16 | 161.9 |
O19—C2—C3—C8 | 170.0 (5) | C10—C11—C12—C13 | −179.2 (5) |
O19—C2—C3—H21A | −67.8 | C10—C11—C12—H29 | 0.8 |
O19—C2—C3—H22B | 47.8 | C10—C11—C16—C15 | 179.4 (5) |
N17—C2—C3—C8 | −8.4 (7) | C10—C11—C16—H33 | −0.6 |
N17—C2—C3—H21A | 113.8 | C12—C11—C16—C15 | 0.2 (9) |
N17—C2—C3—H22B | −130.7 | C12—C11—C16—H33 | −179.8 |
C2—C3—C8—C4 | −171.6 (5) | C16—C11—C12—C13 | −0.0 (9) |
C2—C3—C8—C9 | 10.1 (8) | C16—C11—C12—H29 | 180.0 |
H21A—C3—C8—C4 | 66.2 | C11—C12—C13—C14 | −0.3 (9) |
H21A—C3—C8—C9 | −112.2 | C11—C12—C13—H30 | 179.7 |
H22B—C3—C8—C4 | −49.3 | H29—C12—C13—C14 | 179.7 |
H22B—C3—C8—C9 | 132.3 | H29—C12—C13—H30 | −0.3 |
C5—C4—C8—C3 | −177.7 (5) | C12—C13—C14—C15 | 0.5 (9) |
C5—C4—C8—C9 | 0.7 (9) | C12—C13—C14—H31 | −179.5 |
C8—C4—C5—C6 | −0.5 (9) | H30—C13—C14—C15 | −179.5 |
C8—C4—C5—H24 | 179.5 | H30—C13—C14—H31 | 0.5 |
H23—C4—C5—C6 | 179.5 | C13—C14—C15—C16 | −0.3 (9) |
H23—C4—C5—H24 | −0.5 | C13—C14—C15—H32 | 179.7 |
H23—C4—C8—C3 | 2.3 | H31—C14—C15—C16 | 179.6 |
H23—C4—C8—C9 | −179.3 | H31—C14—C15—H32 | −0.4 |
C4—C5—C6—C7 | −0.1 (9) | C14—C15—C16—C11 | −0.0 (9) |
C4—C5—C6—H25 | 179.9 | C14—C15—C16—H33 | 180.0 |
H24—C5—C6—C7 | 179.9 | H32—C15—C16—C11 | 180.0 |
H24—C5—C6—H25 | −0.1 | H32—C15—C16—H33 | −0.0 |
C5—C6—C7—C9 | 0.5 (10) |
Symmetry codes: (i) x+1/2, −y+3/2, z; (ii) −x, −y+1, z−1/2; (iii) −x+1/2, y−1/2, z−1/2; (iv) −x+1, −y+1, z+1/2; (v) x−1/2, −y+3/2, z; (vi) −x, −y+1, z+1/2; (vii) −x+1/2, y+1/2, z+1/2; (viii) −x+1, −y+1, z−1/2; (ix) −x+1/2, y−1/2, z+1/2; (x) x−1/2, −y+3/2, z+1; (xi) x, y, z+1; (xii) −x+1/2, y+1/2, z−1/2; (xiii) x, y, z−1; (xiv) x+1/2, −y+3/2, z−1. |
Cg2 and Cg3 are the centroids of the C4–C8 and C11–C16 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3i—H21Ai···O18 | 0.99 | 2.74 | 3.220 (8) | 110 |
C6—H25···O19vii | 0.95 | 2.51 | 3.334 (8) | 146 |
C3—H22B···Cg3iv | 0.99 | 2.91 | 3.556 (7) | 124 |
C7—H26···Cg2i | 0.95 | 2.88 | 3.470 (8) | 122 |
Symmetry codes: (i) x+1/2, −y+3/2, z; (iv) −x+1, −y+1, z+1/2; (vii) −x+1/2, y+1/2, z+1/2. |
Cg2 and Cg3 are the centroids of the C4–C8 and C11–C16 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H25···O19i | 0.95 | 2.51 | 3.334 (8) | 146 |
C3—H22B···Cg3ii | 0.99 | 2.91 | 3.556 (7) | 124 |
C7—H26···Cg2iii | 0.95 | 2.88 | 3.470 (8) | 122 |
Symmetry codes: (i) −x+1/2, y+1/2, z+1/2; (ii) −x+1, −y+1, z+1/2; (iii) x+1/2, −y+3/2, z. |
Acknowledgements
The authors acknowledge the University of Shizuoka for supporting this study.
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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 is a synthetic intermediate of 2-hydroxyisoquinoline-1,3(2H,4H)-dione known to inhibit metalloenzymes such as influenza endonuclease (Parkes et al. 2003), HIV-1 reverse transcriptase RNase H (Hang et al. 2004), HIV-1 integrase (Billamboz et al. 2008) and Escherichia coli ribonuclease III (Sun et al. 2005). Here we report the crystal structure of the title compound, which was obtained from the condensation of homophthalic acid with O-benzylhydroxylamine using a Dean–Stark apparatus.
The compound, C16H13NO3, crystallizes in the orthorhombic space group Pna21. It exists in its keto form [C2—C3—C8 = 117.6 (5)°], as shown in Fig. 1, and the isoquinoline moiety is essentially planar (r.m.s. deviation = 0.0424 Å). The dihedral angle between the least-square planes of the benzene rings is 4.2 (2)°. In the crystal, the molecules are packed through not only intermolecular C—H···O interactions between the isoquinoline methylene H21Ai (i: x + 1/2, -y + 1/2 + 1, z) and isoquinoline-1,3(2H,4H)-dione O18 atoms, and the isoquinoline-1,3(2H,4H)-dione H25ii (ii: -x + 1/2, y + 1/2–1, z + 1/2–1) and O19 atoms, but also through a C—H···π interaction between the isoquinoline-1,3(2H,4H)-dione H22Biii (iii: -x + 1, -y + 1, z - 1/2) atom and the benzyl phenyl ring (Fig. 2).