organic compounds
3-{2-[(1,3-Benzothiazol-2-yl)sulfanylmethyl]phenyl}-4-methoxy-5,5-dimethylfuran-2(5H)-one
aSchool of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China
*Correspondence e-mail: youww@smu.edu.cn
In the title compound, C21H19NO3S2, the dihedral angles formed between the thiazole ring and the adjacent benzene ring and the other benzene ring are 1.58 (3) and 76.48 (6)°, respectively. The features a weak C—H⋯O interaction.
Related literature
For the anti-tumor activity of benzothiazole derivatives, see: Brantley et al. (2004) and for their anti-tuberculous properties, see: Palmer et al. (1971). For fungicidal properties of benzothiazolines and the preparation of the title compound, see: Zhao et al. (2010). For general background to furan-2(5H)-ones and their derivatives, see: Iannazzo et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); 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
10.1107/S1600536812022404/im2376sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812022404/im2376Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812022404/im2376Isup3.cml
The title compound was synthesized according to a published procedure (Zhao et al., 2010). Crystals appropriate for X-ray data collection were obtained by slow evaporation of a methanolic solution at 292 K.
All H atoms were initially located in a difference Fourier map. Methyl H atoms were then constrained to an ideal geometry with C—H distances of 0.96 Å and Uiso(H) = 1.5Ueq(C), but each group was allowed to rotate freely about its C—C bond. All other H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms with C—H distances in the range 0.93–0.97 Å and Uiso(H) = 1.2Ueq(C).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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).C21H19NO3S2 | Z = 2 |
Mr = 397.49 | F(000) = 416 |
Triclinic, P1 | Dx = 1.339 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.4702 (9) Å | Cell parameters from 2192 reflections |
b = 10.4851 (9) Å | θ = 2.3–24.6° |
c = 10.5169 (9) Å | µ = 0.29 mm−1 |
α = 117.567 (1)° | T = 292 K |
β = 100.398 (1)° | Block, colorless |
γ = 95.257 (1)° | 0.20 × 0.20 × 0.10 mm |
V = 986.15 (15) Å3 |
Bruker SMART CCD area-detector diffractometer | 3804 independent reflections |
Radiation source: fine-focus sealed tube | 2713 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
phi and ω scans | θmax = 26.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2005) | h = −11→12 |
Tmin = 0.944, Tmax = 0.972 | k = −12→12 |
7206 measured reflections | l = −12→12 |
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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 0.90 | w = 1/[σ2(Fo2) + (0.0592P)2] where P = (Fo2 + 2Fc2)/3 |
3804 reflections | (Δ/σ)max < 0.001 |
247 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C21H19NO3S2 | γ = 95.257 (1)° |
Mr = 397.49 | V = 986.15 (15) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.4702 (9) Å | Mo Kα radiation |
b = 10.4851 (9) Å | µ = 0.29 mm−1 |
c = 10.5169 (9) Å | T = 292 K |
α = 117.567 (1)° | 0.20 × 0.20 × 0.10 mm |
β = 100.398 (1)° |
Bruker SMART CCD area-detector diffractometer | 3804 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2005) | 2713 reflections with I > 2σ(I) |
Tmin = 0.944, Tmax = 0.972 | Rint = 0.040 |
7206 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 0.90 | Δρmax = 0.25 e Å−3 |
3804 reflections | Δρmin = −0.22 e Å−3 |
247 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 | ||
C1 | 0.3099 (2) | 1.1296 (2) | 0.3804 (2) | 0.0429 (5) | |
C2 | 0.1915 (2) | 1.1787 (3) | 0.3934 (3) | 0.0585 (6) | |
H2 | 0.1101 | 1.1139 | 0.3439 | 0.070* | |
C3 | 0.1987 (3) | 1.3256 (3) | 0.4814 (3) | 0.0749 (8) | |
H3 | 0.1207 | 1.3609 | 0.4920 | 0.090* | |
C4 | 0.3186 (3) | 1.4226 (3) | 0.5548 (3) | 0.0720 (8) | |
H4 | 0.3199 | 1.5220 | 0.6133 | 0.086* | |
C5 | 0.4367 (2) | 1.3757 (2) | 0.5435 (3) | 0.0548 (6) | |
H5 | 0.5172 | 1.4418 | 0.5944 | 0.066* | |
C6 | 0.4325 (2) | 1.2275 (2) | 0.4545 (2) | 0.0401 (5) | |
C7 | 0.5064 (2) | 1.0231 (2) | 0.3504 (2) | 0.0393 (5) | |
C8 | 0.7722 (2) | 1.0145 (2) | 0.3745 (2) | 0.0471 (5) | |
H8A | 0.7754 | 1.0955 | 0.4713 | 0.057* | |
H8B | 0.8379 | 0.9594 | 0.3878 | 0.057* | |
C9 | 0.80777 (19) | 1.0755 (2) | 0.2782 (2) | 0.0383 (5) | |
C10 | 0.82367 (19) | 0.9825 (2) | 0.1364 (2) | 0.0388 (5) | |
C11 | 0.8548 (2) | 1.0439 (2) | 0.0510 (2) | 0.0468 (5) | |
H11 | 0.8650 | 0.9830 | −0.0432 | 0.056* | |
C12 | 0.8711 (2) | 1.1929 (3) | 0.1022 (3) | 0.0532 (6) | |
H12 | 0.8919 | 1.2318 | 0.0433 | 0.064* | |
C13 | 0.8561 (2) | 1.2839 (2) | 0.2417 (3) | 0.0547 (6) | |
H13 | 0.8674 | 1.3847 | 0.2775 | 0.066* | |
C14 | 0.8244 (2) | 1.2252 (2) | 0.3280 (2) | 0.0486 (6) | |
H14 | 0.8140 | 1.2873 | 0.4217 | 0.058* | |
C15 | 0.8151 (2) | 0.8231 (2) | 0.0802 (2) | 0.0406 (5) | |
C16 | 0.7292 (2) | 0.7023 (2) | −0.0266 (2) | 0.0495 (6) | |
C17 | 0.7745 (2) | 0.5641 (3) | −0.0455 (3) | 0.0630 (7) | |
C18 | 0.9225 (2) | 0.7703 (3) | 0.1412 (3) | 0.0514 (6) | |
C19 | 0.5531 (2) | 0.8016 (3) | −0.1034 (3) | 0.0575 (6) | |
H19A | 0.5432 | 0.8556 | −0.0043 | 0.086* | |
H19B | 0.4677 | 0.7665 | −0.1725 | 0.086* | |
H19C | 0.6086 | 0.8647 | −0.1235 | 0.086* | |
C20 | 0.6809 (3) | 0.4717 (3) | −0.0114 (4) | 0.0940 (10) | |
H20A | 0.7197 | 0.3923 | −0.0111 | 0.141* | |
H20B | 0.5983 | 0.4328 | −0.0856 | 0.141* | |
H20C | 0.6657 | 0.5315 | 0.0841 | 0.141* | |
C21 | 0.8059 (3) | 0.4778 (3) | −0.1948 (3) | 0.0900 (10) | |
H21A | 0.8612 | 0.5429 | −0.2127 | 0.135* | |
H21B | 0.7250 | 0.4334 | −0.2718 | 0.135* | |
H21C | 0.8515 | 0.4026 | −0.1941 | 0.135* | |
N1 | 0.54360 (17) | 1.16332 (19) | 0.43437 (18) | 0.0421 (4) | |
O1 | 1.02066 (17) | 0.84009 (18) | 0.2398 (2) | 0.0706 (5) | |
O2 | 0.89788 (16) | 0.62095 (17) | 0.06858 (18) | 0.0649 (5) | |
O3 | 0.61278 (16) | 0.67939 (17) | −0.11829 (18) | 0.0677 (5) | |
S1 | 0.33515 (6) | 0.95239 (6) | 0.28478 (6) | 0.04817 (18) | |
S2 | 0.60881 (6) | 0.89569 (6) | 0.29888 (6) | 0.04876 (19) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0394 (13) | 0.0446 (13) | 0.0388 (11) | 0.0066 (10) | 0.0056 (10) | 0.0175 (10) |
C2 | 0.0378 (14) | 0.0557 (16) | 0.0604 (15) | 0.0056 (12) | 0.0000 (12) | 0.0162 (13) |
C3 | 0.0425 (16) | 0.0631 (18) | 0.091 (2) | 0.0176 (14) | 0.0086 (15) | 0.0167 (16) |
C4 | 0.0551 (18) | 0.0436 (15) | 0.088 (2) | 0.0149 (13) | 0.0073 (15) | 0.0121 (15) |
C5 | 0.0463 (15) | 0.0416 (14) | 0.0616 (15) | 0.0026 (11) | 0.0019 (12) | 0.0184 (12) |
C6 | 0.0366 (12) | 0.0418 (13) | 0.0405 (11) | 0.0050 (10) | 0.0064 (10) | 0.0209 (10) |
C7 | 0.0413 (13) | 0.0427 (13) | 0.0372 (11) | 0.0079 (10) | 0.0111 (10) | 0.0219 (10) |
C8 | 0.0421 (13) | 0.0541 (14) | 0.0441 (12) | 0.0157 (11) | 0.0110 (11) | 0.0221 (11) |
C9 | 0.0265 (11) | 0.0390 (12) | 0.0429 (12) | 0.0082 (9) | 0.0058 (9) | 0.0156 (10) |
C10 | 0.0283 (11) | 0.0409 (12) | 0.0411 (11) | 0.0097 (9) | 0.0065 (9) | 0.0155 (10) |
C11 | 0.0401 (13) | 0.0523 (15) | 0.0461 (13) | 0.0114 (11) | 0.0151 (10) | 0.0206 (11) |
C12 | 0.0440 (14) | 0.0568 (16) | 0.0663 (16) | 0.0077 (12) | 0.0170 (12) | 0.0356 (14) |
C13 | 0.0479 (15) | 0.0392 (14) | 0.0766 (17) | 0.0115 (11) | 0.0190 (13) | 0.0263 (13) |
C14 | 0.0419 (13) | 0.0437 (14) | 0.0487 (13) | 0.0107 (11) | 0.0134 (11) | 0.0124 (11) |
C15 | 0.0322 (12) | 0.0388 (12) | 0.0428 (12) | 0.0104 (10) | 0.0084 (10) | 0.0132 (10) |
C16 | 0.0387 (13) | 0.0433 (14) | 0.0515 (13) | 0.0124 (11) | 0.0027 (11) | 0.0135 (11) |
C17 | 0.0431 (15) | 0.0404 (14) | 0.0751 (17) | 0.0103 (12) | −0.0045 (13) | 0.0104 (13) |
C18 | 0.0405 (14) | 0.0442 (15) | 0.0562 (14) | 0.0145 (11) | 0.0076 (12) | 0.0146 (12) |
C19 | 0.0451 (15) | 0.0602 (16) | 0.0596 (15) | 0.0165 (12) | 0.0001 (12) | 0.0269 (13) |
C20 | 0.071 (2) | 0.0528 (18) | 0.143 (3) | 0.0068 (16) | 0.003 (2) | 0.045 (2) |
C21 | 0.076 (2) | 0.0606 (18) | 0.078 (2) | 0.0289 (16) | −0.0061 (16) | −0.0043 (16) |
N1 | 0.0396 (11) | 0.0438 (11) | 0.0437 (10) | 0.0062 (9) | 0.0088 (8) | 0.0232 (9) |
O1 | 0.0455 (11) | 0.0551 (11) | 0.0751 (12) | 0.0121 (9) | −0.0145 (9) | 0.0129 (10) |
O2 | 0.0498 (11) | 0.0427 (10) | 0.0749 (11) | 0.0169 (8) | −0.0066 (9) | 0.0132 (9) |
O3 | 0.0483 (11) | 0.0482 (10) | 0.0695 (11) | 0.0112 (8) | −0.0148 (9) | 0.0091 (9) |
S1 | 0.0433 (4) | 0.0417 (4) | 0.0459 (3) | 0.0025 (3) | 0.0043 (3) | 0.0141 (3) |
S2 | 0.0507 (4) | 0.0436 (4) | 0.0557 (4) | 0.0122 (3) | 0.0204 (3) | 0.0243 (3) |
C1—C2 | 1.391 (3) | C12—C13 | 1.379 (3) |
C1—C6 | 1.403 (3) | C12—H12 | 0.9300 |
C1—S1 | 1.729 (2) | C13—C14 | 1.378 (3) |
C2—C3 | 1.367 (3) | C13—H13 | 0.9300 |
C2—H2 | 0.9300 | C14—H14 | 0.9300 |
C3—C4 | 1.377 (3) | C15—C16 | 1.336 (3) |
C3—H3 | 0.9300 | C15—C18 | 1.471 (3) |
C4—C5 | 1.377 (3) | C16—O3 | 1.334 (3) |
C4—H4 | 0.9300 | C16—C17 | 1.503 (3) |
C5—C6 | 1.385 (3) | C17—O2 | 1.450 (3) |
C5—H5 | 0.9300 | C17—C20 | 1.517 (4) |
C6—N1 | 1.397 (3) | C17—C21 | 1.524 (4) |
C7—N1 | 1.289 (2) | C18—O1 | 1.201 (3) |
C7—S2 | 1.741 (2) | C18—O2 | 1.360 (3) |
C7—S1 | 1.754 (2) | C19—O3 | 1.433 (3) |
C8—C9 | 1.504 (3) | C19—H19A | 0.9600 |
C8—S2 | 1.820 (2) | C19—H19B | 0.9600 |
C8—H8A | 0.9700 | C19—H19C | 0.9600 |
C8—H8B | 0.9700 | C20—H20A | 0.9600 |
C9—C14 | 1.387 (3) | C20—H20B | 0.9600 |
C9—C10 | 1.406 (3) | C20—H20C | 0.9600 |
C10—C11 | 1.390 (3) | C21—H21A | 0.9600 |
C10—C15 | 1.480 (3) | C21—H21B | 0.9600 |
C11—C12 | 1.378 (3) | C21—H21C | 0.9600 |
C11—H11 | 0.9300 | ||
C2—C1—C6 | 121.1 (2) | C13—C14—C9 | 121.5 (2) |
C2—C1—S1 | 129.24 (18) | C13—C14—H14 | 119.3 |
C6—C1—S1 | 109.60 (16) | C9—C14—H14 | 119.3 |
C3—C2—C1 | 117.8 (2) | C16—C15—C18 | 105.53 (19) |
C3—C2—H2 | 121.1 | C16—C15—C10 | 134.4 (2) |
C1—C2—H2 | 121.1 | C18—C15—C10 | 120.01 (19) |
C2—C3—C4 | 121.6 (2) | O3—C16—C15 | 133.6 (2) |
C2—C3—H3 | 119.2 | O3—C16—C17 | 114.12 (19) |
C4—C3—H3 | 119.2 | C15—C16—C17 | 112.3 (2) |
C3—C4—C5 | 121.4 (2) | O2—C17—C16 | 102.18 (18) |
C3—C4—H4 | 119.3 | O2—C17—C20 | 107.9 (2) |
C5—C4—H4 | 119.3 | C16—C17—C20 | 112.3 (2) |
C4—C5—C6 | 118.3 (2) | O2—C17—C21 | 107.9 (2) |
C4—C5—H5 | 120.8 | C16—C17—C21 | 112.4 (2) |
C6—C5—H5 | 120.8 | C20—C17—C21 | 113.3 (2) |
C5—C6—N1 | 124.9 (2) | O1—C18—O2 | 120.9 (2) |
C5—C6—C1 | 119.8 (2) | O1—C18—C15 | 129.0 (2) |
N1—C6—C1 | 115.26 (18) | O2—C18—C15 | 110.17 (19) |
N1—C7—S2 | 126.65 (17) | O3—C19—H19A | 109.5 |
N1—C7—S1 | 116.90 (16) | O3—C19—H19B | 109.5 |
S2—C7—S1 | 116.43 (12) | H19A—C19—H19B | 109.5 |
C9—C8—S2 | 113.56 (14) | O3—C19—H19C | 109.5 |
C9—C8—H8A | 108.9 | H19A—C19—H19C | 109.5 |
S2—C8—H8A | 108.9 | H19B—C19—H19C | 109.5 |
C9—C8—H8B | 108.9 | C17—C20—H20A | 109.5 |
S2—C8—H8B | 108.9 | C17—C20—H20B | 109.5 |
H8A—C8—H8B | 107.7 | H20A—C20—H20B | 109.5 |
C14—C9—C10 | 118.79 (19) | C17—C20—H20C | 109.5 |
C14—C9—C8 | 120.27 (18) | H20A—C20—H20C | 109.5 |
C10—C9—C8 | 120.93 (18) | H20B—C20—H20C | 109.5 |
C11—C10—C9 | 118.73 (19) | C17—C21—H21A | 109.5 |
C11—C10—C15 | 119.70 (18) | C17—C21—H21B | 109.5 |
C9—C10—C15 | 121.48 (18) | H21A—C21—H21B | 109.5 |
C12—C11—C10 | 121.7 (2) | C17—C21—H21C | 109.5 |
C12—C11—H11 | 119.2 | H21A—C21—H21C | 109.5 |
C10—C11—H11 | 119.2 | H21B—C21—H21C | 109.5 |
C11—C12—C13 | 119.5 (2) | C7—N1—C6 | 109.71 (18) |
C11—C12—H12 | 120.3 | C18—O2—C17 | 109.83 (17) |
C13—C12—H12 | 120.3 | C16—O3—C19 | 119.67 (17) |
C14—C13—C12 | 119.9 (2) | C1—S1—C7 | 88.52 (10) |
C14—C13—H13 | 120.1 | C7—S2—C8 | 101.71 (10) |
C12—C13—H13 | 120.1 | ||
C6—C1—C2—C3 | −0.3 (3) | C18—C15—C16—C17 | −1.3 (3) |
S1—C1—C2—C3 | 177.37 (19) | C10—C15—C16—C17 | 175.3 (2) |
C1—C2—C3—C4 | 0.2 (4) | O3—C16—C17—O2 | −178.22 (19) |
C2—C3—C4—C5 | −0.4 (4) | C15—C16—C17—O2 | 1.5 (3) |
C3—C4—C5—C6 | 0.7 (4) | O3—C16—C17—C20 | −62.8 (3) |
C4—C5—C6—N1 | −178.7 (2) | C15—C16—C17—C20 | 117.0 (3) |
C4—C5—C6—C1 | −0.8 (3) | O3—C16—C17—C21 | 66.4 (3) |
C2—C1—C6—C5 | 0.6 (3) | C15—C16—C17—C21 | −113.8 (2) |
S1—C1—C6—C5 | −177.46 (16) | C16—C15—C18—O1 | −179.5 (2) |
C2—C1—C6—N1 | 178.74 (18) | C10—C15—C18—O1 | 3.3 (4) |
S1—C1—C6—N1 | 0.6 (2) | C16—C15—C18—O2 | 0.5 (2) |
S2—C8—C9—C14 | 114.53 (19) | C10—C15—C18—O2 | −176.70 (18) |
S2—C8—C9—C10 | −64.9 (2) | S2—C7—N1—C6 | −177.70 (14) |
C14—C9—C10—C11 | −0.3 (3) | S1—C7—N1—C6 | 0.6 (2) |
C8—C9—C10—C11 | 179.14 (18) | C5—C6—N1—C7 | 177.21 (19) |
C14—C9—C10—C15 | 176.32 (18) | C1—C6—N1—C7 | −0.8 (2) |
C8—C9—C10—C15 | −4.2 (3) | O1—C18—O2—C17 | −179.5 (2) |
C9—C10—C11—C12 | 0.4 (3) | C15—C18—O2—C17 | 0.5 (3) |
C15—C10—C11—C12 | −176.34 (19) | C16—C17—O2—C18 | −1.1 (3) |
C10—C11—C12—C13 | 0.0 (3) | C20—C17—O2—C18 | −119.7 (2) |
C11—C12—C13—C14 | −0.4 (3) | C21—C17—O2—C18 | 117.5 (2) |
C12—C13—C14—C9 | 0.4 (3) | C15—C16—O3—C19 | −4.9 (4) |
C10—C9—C14—C13 | −0.1 (3) | C17—C16—O3—C19 | 174.8 (2) |
C8—C9—C14—C13 | −179.52 (19) | C2—C1—S1—C7 | −178.2 (2) |
C11—C10—C15—C16 | −71.7 (3) | C6—C1—S1—C7 | −0.26 (14) |
C9—C10—C15—C16 | 111.7 (3) | N1—C7—S1—C1 | −0.19 (15) |
C11—C10—C15—C18 | 104.6 (2) | S2—C7—S1—C1 | 178.27 (12) |
C9—C10—C15—C18 | −72.1 (3) | N1—C7—S2—C8 | −6.61 (19) |
C18—C15—C16—O3 | 178.4 (2) | S1—C7—S2—C8 | 175.11 (10) |
C10—C15—C16—O3 | −5.0 (4) | C9—C8—S2—C7 | −80.97 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O1i | 0.93 | 2.56 | 3.302 (3) | 137 |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C21H19NO3S2 |
Mr | 397.49 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 292 |
a, b, c (Å) | 10.4702 (9), 10.4851 (9), 10.5169 (9) |
α, β, γ (°) | 117.567 (1), 100.398 (1), 95.257 (1) |
V (Å3) | 986.15 (15) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.29 |
Crystal size (mm) | 0.20 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2005) |
Tmin, Tmax | 0.944, 0.972 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7206, 3804, 2713 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.109, 0.90 |
No. of reflections | 3804 |
No. of parameters | 247 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.22 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O1i | 0.93 | 2.56 | 3.302 (3) | 137.2 |
Symmetry code: (i) x−1, y, z. |
Acknowledgements
The authors acknowledge financial support from the Science Foundation of the Medical Scientific Research Foundation of Guangdong Province (B2010185), and the Natural Science Foundation of Guangdong Province (No. 10451051501004725)
References
Brantley, E., Trapani, V., Alley, M. C., Hose, C. D., Bradshaw, T. D., Stevens, M. F. G., Sausville, E. A. & Stinson, S. F. (2004). Drug Metab. Disp. 32, 1392–1401. Web of Science CrossRef CAS Google Scholar
Bruker (2001). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Iannazzo, D., Piperno, A., Romeo, G., Romeo, R., Chiacchio, U., Rescifina, A., Balestrieri, E., Macchi, B., Mastino, A. & Cortese, R. (2008). Bioorg. Med. Chem. 16, 9610–9615. Web of Science CrossRef PubMed CAS Google Scholar
Palmer, P. J., Trigg, R. B. & &Warrington, J. V. (1971). J. Med. Chem. 14, 248–251. CrossRef CAS PubMed Web of Science Google Scholar
Sheldrick, G. M. (2005). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zhao, P. L., Wang, F., Huang, W., Chen, Q. & Liu, Z. M. (2010). Chin. J. Org. Chem. 30, 1567–1573. CAS Google Scholar
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Benzothiazole derivatives are well known to exhibit a wide spectrum of biological activities, including fungicidal, anticancer and anti-tuberculous properties. (Brantley et al., 2004; Zhao et al., 2010; Palmer et al., 1971). In addition, furan-2(5H)-one derivatives also have good biological activities (Iannazzo et al., 2008). These findings prompted us to synthesize a new series of benzothiazole derivatives by incorporating furan-2(5H)-one at the 2-position, in the hope of finding molecules showing an improved bioactivity. We present here the X-ray crystallographic analysis of the title compound, (I), which was designed and synthesized in our laboratory.
A view of the molecular structure of the title compound is given in Fig.1. The bond lengths and angles are unremarkable.The dihedral angles formed between the triazole ring and the adjacent benzene ring and the other benzene ring system are 1.58 (3)° and 76.48 (6)°, respectively. One intermolecular C—H···O hydrogen bond exists in the crystal structure (Table 1). Atom C2 in the molecule acts as donor, via the H atom H2, towards O1 of an adjacent molecule (Fig.2). No π-π-stacking interactions are observed in the crystal structure.