4-{[1-(4-Ethoxy­phen­yl)-5-methyl-1H-1,2,3-triazol-4-yl]diphenyl­meth­yl}morpholine

Wu, J.-G.; Dong, H.-R.; Dong, H.-S.; Ng, S.W.

doi:10.1107/S1600536808012725

organic compounds

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 64| Part 6| June 2008| Page o1067

doi:10.1107/S1600536808012725

Open

access

4-{[1-(4-Ethoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]diphenylmethyl}morpholine

Jian-Guo Wu,^a Hong-Ru Dong,^a Heng-Shan Dong ^a ^* and Seik Weng Ng ^b

^aState Key Laboratory of Applied Organic Chemistry, Institute of Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China, and ^bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
^*Correspondence e-mail: donghengshan@lzu.edu.cn

(Received 15 April 2008; accepted 30 April 2008; online 14 May 2008)

The title compound, C₂₈H₃₀N₄O₂, synthesized from 4-[1-(4-ethoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]diphenylmethanol and morpholine, consists of a subsituted triazolyl group and a morpholinyl group that crowd the aliphatic C atom of a diphenylmethyl unit [C_triaz—C—N_morph = 110.1 (1)° and C_phenyl—C—C_phenyl = 103.9 (1)°]. The morpholine ring adopts a chair conformation.

Related literature

For background literature on the synthesis of the precursor (1-aryl-5-methyl-1H-1,2,3-triazol-4-yl)diarylmethanols, see: Dong et al. (2008 ).

Experimental

Crystal data

C₂₈H₃₀N₄O₂
M_r = 454.56
Triclinic, $[P \overline 1]$
a = 9.406 (1) Å
b = 10.125 (1) Å
c = 13.670 (2) Å
α = 81.408 (1)°
β = 73.621 (1)°
γ = 81.547 (1)°
V = 1227.4 (2) Å³
Z = 2
Mo Kα radiation
μ = 0.08 mm⁻¹
T = 294 (2) K
0.28 × 0.25 × 0.20 mm

Data collection

Bruker APEXII diffractometer
Absorption correction: none
6395 measured reflections
4437 independent reflections
2830 reflections with I > 2σ(I)
R_int = 0.019

Refinement

R[F² > 2σ(F²)] = 0.046
wR(F²) = 0.126
S = 0.99
4437 reflections
309 parameters
H-atom parameters constrained
Δρ_max = 0.14 e Å⁻³
Δρ_min = −0.23 e Å⁻³

Data collection: APEX2 (Bruker, 2004 ); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001 ); software used to prepare material for publication: publCIF (Westrip, 2008 ).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808012725/hg2394sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536808012725/hg2394Isup2.hkl

checkCIF report

Comment top

We have recently reported the synthesis of some (1-aryl-5-methyl-1H-1,2,3-triazol-4-yl)diarylmethanols and characterized one of them, 1-(4-tolyl)-5-methyl-1H-1,2,3-triazol-4-yl]bis(3-chlorophenyl)methanol, by X-ray crystallography (Dong et al., 2008). In the present study, the methanolic –OH group of [1-(4-ethoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]diphenylmethanol is replaced by a morpholinyl ring in the expectation that the resulting compound (Scheme I) will possess enhanced biological activity. The compound, C₂₈H₃₀N₄O₂(Fig. 1), consists of a subsituted triazolyl part and a morpholinyl part that crowd the aliphatic carbon atom of the diphenylmethyl entity, the crowding depressing the C_phenyl–C–C_phenyl angle [103.9 (1)°] from the idealized angle. The morpholinyl ring adopts a chair conformation.

Related literature top

For background literature on the synthesis of precursor (1-aryl-5-methyl-1H-1,2,3-triazol-4-yl)diarylmethanols, see: Dong et al. (2008).

Experimental top

[1-(4-Ethoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]diphenylmethanol, which was synthesized by a modification of a published procedure (Dong et al., 2008) (1.2 g, 3.2 mmol), was dissolved in benzene (30 ml); dry hydrogen chloride gas was passed into the refluxing solution until the theoretical quantity of water was formed. Morpholine (0.4 ml) and triethylamine (0.7 ml) were added and the mixture kept at 318 K for two hours. Removal of the solvent gave a solid; this was washed with water, dried and recrystallized from ethyl acetate to give the pure compound, m.p. 456–458 K in 90% yield. The formulation was established by ¹H-NMR and mass spectrosopic analyses. ¹H-NMR(300 MHz, CDCl₃): 1.422–1.469 (t, 3H, J = 6.9 Hz, ArOCH₂–CH₃), 2.049 (s, 3H, triazolyl–CH₃), 2.456 (br, 4H, –N(CH₂)₂–), 3.829–3.859 (t, 4H, J = 4.5 Hz, –CH₂OCH₂–), 4.044–4.114 (q, 2H, J = 6.9 Hz, ArO–CH₂–), 6.975–7.006 (d, 2H, J = 9.3 Hz, C₂H₅OAr–3,5H), 7.143–7.192 (t, 2H, J = 7.5 Hz, Ar–4H), 7.258–7.352 (m, 6H, C₂H₅OAr–2,6H, Ar–3,5H), 7.557–7.583 (d, 4H, J = 7.8 Hz, Ar–2,6H) p.p.m.. MS (%): 454 (M^+., 0.88%), 369 (68), 340 (59), 312 (17), 310 (13), 264 (7.3), 252 (7.1), 224 (4.8), 219 (3.1), 205 (9.9), 191 (6.7), 178 (18), 165 (15), 162 (100), 151 (16), 149 (40), 134 (19), 121 (12), 93 (11), 91 (16), 77 (17).

Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2008).

Figures top

Fig. 1. 50% Probability thermal ellipsoid plot (Barbour, 2001) of C₂₈H₃₀N₄O₂. Hydrogen atoms are drawn as spheres of arbitrary radii.

4-{[1-(4-Ethoxyphenyl)-5-methyl-1H-1,2,3-triazol-4- yl]diphenylmethyl}morpholine top

Crystal data top

C₂₈H₃₀N₄O₂	Z = 2
M_r = 454.56	F(000) = 484
Triclinic, P1	D_x = 1.230 Mg m⁻³
Hall symbol: -P 1	Melting point: 457 K
a = 9.406 (1) Å	Mo Kα radiation, λ = 0.71073 Å
b = 10.125 (1) Å	Cell parameters from 1386 reflections
c = 13.670 (2) Å	θ = 2.3–22.5°
α = 81.408 (1)°	µ = 0.08 mm⁻¹
β = 73.621 (1)°	T = 294 K
γ = 81.547 (1)°	Rhombohedron, colorless
V = 1227.4 (2) Å³	0.28 × 0.25 × 0.20 mm

Data collection top

Bruker APEXII diffractometer	2830 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.019
Graphite monochromator	θ_max = 25.0°, θ_min = 2.0°
ϕ and ω scans	h = −7→11
6395 measured reflections	k = −9→12
4437 independent reflections	l = −16→16

Refinement top

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)] = 0.046	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.126	H-atom parameters constrained
S = 0.99	w = 1/[σ²(F_o²) + (0.0614P)²] where P = (F_o² + 2F_c²)/3
4437 reflections	(Δ/σ)_max = 0.001
309 parameters	Δρ_max = 0.14 e Å⁻³
0 restraints	Δρ_min = −0.23 e Å⁻³

Crystal data top

C₂₈H₃₀N₄O₂	γ = 81.547 (1)°
M_r = 454.56	V = 1227.4 (2) Å³
Triclinic, P1	Z = 2
a = 9.406 (1) Å	Mo Kα radiation
b = 10.125 (1) Å	µ = 0.08 mm⁻¹
c = 13.670 (2) Å	T = 294 K
α = 81.408 (1)°	0.28 × 0.25 × 0.20 mm
β = 73.621 (1)°

Data collection top

Bruker APEXII diffractometer	2830 reflections with I > 2σ(I)
6395 measured reflections	R_int = 0.019
4437 independent reflections

Refinement top

R[F² > 2σ(F²)] = 0.046	0 restraints
wR(F²) = 0.126	H-atom parameters constrained
S = 0.99	Δρ_max = 0.14 e Å⁻³
4437 reflections	Δρ_min = −0.23 e Å⁻³
309 parameters

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
O1	−0.01051 (14)	0.78624 (14)	0.99479 (11)	0.0597 (4)
O2	1.10986 (17)	0.31482 (19)	0.68284 (13)	0.0761 (5)
N1	0.43338 (16)	0.39052 (15)	0.83355 (11)	0.0395 (4)
N2	0.49124 (17)	0.30714 (16)	0.90338 (12)	0.0462 (4)
N3	0.59072 (17)	0.21953 (16)	0.85227 (11)	0.0447 (4)
N4	0.86454 (15)	0.19704 (15)	0.66019 (11)	0.0392 (4)
C1	0.31717 (19)	0.49423 (18)	0.86992 (14)	0.0391 (5)
C2	0.1836 (2)	0.5083 (2)	0.84476 (14)	0.0468 (5)
H2	0.1686	0.4521	0.8015	0.056*
C3	0.0710 (2)	0.6066 (2)	0.88424 (15)	0.0479 (5)
H3	−0.0188	0.6173	0.8665	0.057*
C4	0.0926 (2)	0.68869 (19)	0.94988 (14)	0.0428 (5)
C5	0.2269 (2)	0.6723 (2)	0.97548 (15)	0.0495 (5)
H5	0.2415	0.7266	1.0202	0.059*
C6	0.3386 (2)	0.57633 (19)	0.93530 (15)	0.0458 (5)
H6	0.4290	0.5666	0.9522	0.055*
C7	−0.1432 (2)	0.8214 (2)	0.96182 (15)	0.0538 (6)
H7A	−0.2016	0.7458	0.9783	0.065*
H7B	−0.1189	0.8464	0.8882	0.065*
C8	−0.2296 (3)	0.9376 (2)	1.01669 (19)	0.0735 (7)
H8A	−0.3161	0.9686	0.9920	0.110*
H8B	−0.1679	1.0092	1.0042	0.110*
H8C	−0.2602	0.9095	1.0891	0.110*
C9	0.4629 (2)	0.4427 (2)	0.64574 (15)	0.0570 (6)
H9A	0.4425	0.5350	0.6592	0.086*
H9B	0.3771	0.4150	0.6329	0.086*
H9C	0.5466	0.4334	0.5867	0.086*
C10	0.49787 (19)	0.35671 (18)	0.73669 (14)	0.0389 (5)
C11	0.59709 (19)	0.24503 (18)	0.75005 (14)	0.0372 (4)
C12	0.71084 (18)	0.15980 (18)	0.67455 (13)	0.0365 (4)
C13	0.8762 (2)	0.3413 (2)	0.63607 (17)	0.0545 (6)
H13A	0.8234	0.3869	0.6957	0.065*
H13B	0.8308	0.3771	0.5807	0.065*
C14	1.0384 (2)	0.3658 (2)	0.60466 (18)	0.0663 (7)
H14A	1.0893	0.3234	0.5432	0.080*
H14B	1.0454	0.4617	0.5885	0.080*
C15	1.0936 (2)	0.1761 (3)	0.71158 (19)	0.0702 (7)
H15A	1.1395	0.1434	0.7672	0.084*
H15B	1.1456	0.1267	0.6538	0.084*
C16	0.9328 (2)	0.1497 (2)	0.74525 (16)	0.0557 (6)
H16A	0.9261	0.0542	0.7647	0.067*
H16B	0.8805	0.1964	0.8044	0.067*
C17	0.70954 (19)	0.00784 (18)	0.71035 (13)	0.0381 (4)
C18	0.5995 (2)	−0.0457 (2)	0.78943 (16)	0.0498 (5)
H18	0.5237	0.0118	0.8264	0.060*
C19	0.5992 (2)	−0.1829 (2)	0.81513 (17)	0.0607 (6)
H19	0.5233	−0.2163	0.8689	0.073*
C20	0.7093 (3)	−0.2706 (2)	0.76228 (17)	0.0586 (6)
H20	0.7092	−0.3629	0.7800	0.070*
C21	0.8192 (3)	−0.2191 (2)	0.68285 (17)	0.0607 (6)
H21	0.8944	−0.2771	0.6460	0.073*
C22	0.8196 (2)	−0.0820 (2)	0.65696 (16)	0.0531 (5)
H22	0.8952	−0.0491	0.6027	0.064*
C23	0.6762 (2)	0.17581 (18)	0.56946 (14)	0.0398 (5)
C24	0.5331 (2)	0.1628 (2)	0.56461 (17)	0.0549 (6)
H24	0.4577	0.1505	0.6250	0.066*
C25	0.5019 (3)	0.1679 (2)	0.4711 (2)	0.0690 (7)
H25	0.4054	0.1605	0.4691	0.083*
C26	0.6119 (3)	0.1836 (2)	0.3817 (2)	0.0746 (8)
H26	0.5905	0.1873	0.3189	0.089*
C27	0.7536 (3)	0.1939 (2)	0.38524 (17)	0.0708 (7)
H27	0.8290	0.2035	0.3245	0.085*
C28	0.7858 (2)	0.1903 (2)	0.47848 (15)	0.0534 (6)
H28	0.8826	0.1977	0.4797	0.064*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O1	0.0467 (9)	0.0636 (10)	0.0720 (10)	0.0161 (7)	−0.0198 (7)	−0.0315 (8)
O2	0.0700 (11)	0.0936 (14)	0.0784 (12)	−0.0350 (9)	−0.0273 (9)	−0.0124 (10)
N1	0.0391 (9)	0.0370 (9)	0.0405 (9)	0.0024 (7)	−0.0088 (7)	−0.0084 (7)
N2	0.0482 (10)	0.0465 (10)	0.0431 (9)	0.0064 (8)	−0.0137 (8)	−0.0107 (8)
N3	0.0453 (10)	0.0457 (10)	0.0420 (9)	0.0050 (7)	−0.0114 (8)	−0.0120 (8)
N4	0.0350 (9)	0.0435 (10)	0.0399 (9)	−0.0056 (7)	−0.0097 (7)	−0.0063 (7)
C1	0.0363 (11)	0.0372 (11)	0.0418 (11)	0.0000 (8)	−0.0074 (8)	−0.0080 (9)
C2	0.0460 (12)	0.0499 (13)	0.0486 (12)	−0.0020 (9)	−0.0143 (10)	−0.0184 (10)
C3	0.0385 (11)	0.0556 (14)	0.0518 (12)	−0.0004 (9)	−0.0143 (9)	−0.0139 (10)
C4	0.0386 (11)	0.0416 (12)	0.0458 (11)	0.0027 (8)	−0.0075 (9)	−0.0115 (9)
C5	0.0497 (12)	0.0472 (13)	0.0580 (13)	0.0045 (9)	−0.0210 (10)	−0.0230 (10)
C6	0.0398 (11)	0.0442 (12)	0.0574 (13)	−0.0011 (9)	−0.0173 (9)	−0.0140 (10)
C7	0.0433 (12)	0.0603 (15)	0.0537 (13)	0.0073 (10)	−0.0133 (10)	−0.0062 (11)
C8	0.0607 (15)	0.0736 (18)	0.0824 (17)	0.0250 (12)	−0.0215 (13)	−0.0245 (14)
C9	0.0676 (14)	0.0489 (14)	0.0469 (12)	0.0082 (10)	−0.0117 (10)	−0.0025 (10)
C10	0.0394 (11)	0.0376 (11)	0.0374 (11)	−0.0010 (8)	−0.0064 (8)	−0.0072 (9)
C11	0.0357 (10)	0.0387 (11)	0.0381 (11)	−0.0021 (8)	−0.0101 (8)	−0.0088 (8)
C12	0.0343 (10)	0.0371 (11)	0.0368 (10)	−0.0013 (8)	−0.0071 (8)	−0.0075 (8)
C13	0.0529 (13)	0.0483 (14)	0.0624 (14)	−0.0114 (10)	−0.0118 (11)	−0.0078 (11)
C14	0.0630 (15)	0.0685 (17)	0.0713 (16)	−0.0269 (12)	−0.0161 (13)	−0.0038 (13)
C15	0.0514 (14)	0.093 (2)	0.0739 (16)	−0.0184 (13)	−0.0269 (12)	−0.0018 (15)
C16	0.0476 (13)	0.0729 (16)	0.0506 (13)	−0.0136 (10)	−0.0192 (10)	−0.0004 (11)
C17	0.0371 (10)	0.0389 (11)	0.0397 (11)	−0.0016 (8)	−0.0124 (9)	−0.0072 (9)
C18	0.0435 (12)	0.0436 (13)	0.0573 (13)	−0.0032 (9)	−0.0037 (10)	−0.0107 (10)
C19	0.0583 (14)	0.0498 (15)	0.0693 (16)	−0.0149 (11)	−0.0071 (12)	−0.0021 (12)
C20	0.0746 (16)	0.0380 (13)	0.0671 (15)	−0.0085 (11)	−0.0260 (13)	−0.0023 (11)
C21	0.0698 (15)	0.0442 (14)	0.0623 (14)	0.0079 (11)	−0.0113 (12)	−0.0139 (11)
C22	0.0539 (13)	0.0446 (13)	0.0516 (13)	0.0006 (9)	−0.0016 (10)	−0.0065 (10)
C23	0.0460 (11)	0.0324 (11)	0.0425 (11)	0.0013 (8)	−0.0145 (9)	−0.0090 (8)
C24	0.0554 (14)	0.0533 (14)	0.0637 (14)	−0.0053 (10)	−0.0261 (11)	−0.0110 (11)
C25	0.0843 (18)	0.0559 (16)	0.0863 (19)	−0.0046 (12)	−0.0538 (16)	−0.0121 (13)
C26	0.120 (2)	0.0568 (16)	0.0623 (17)	0.0066 (15)	−0.0526 (17)	−0.0146 (13)
C27	0.096 (2)	0.0720 (18)	0.0433 (13)	0.0057 (14)	−0.0225 (13)	−0.0090 (12)
C28	0.0586 (14)	0.0582 (14)	0.0418 (12)	0.0035 (10)	−0.0134 (10)	−0.0101 (10)

Geometric parameters (Å, º) top

O1—C4	1.363 (2)	C12—C23	1.541 (2)
O1—C7	1.424 (2)	C12—C17	1.544 (2)
O2—C14	1.414 (3)	C13—C14	1.512 (3)
O2—C15	1.419 (3)	C13—H13A	0.9700
N1—N2	1.3554 (19)	C13—H13B	0.9700
N1—C10	1.364 (2)	C14—H14A	0.9700
N1—C1	1.434 (2)	C14—H14B	0.9700
N2—N3	1.3126 (19)	C15—C16	1.504 (3)
N3—C11	1.368 (2)	C15—H15A	0.9700
N4—C13	1.462 (2)	C15—H15B	0.9700
N4—C16	1.469 (2)	C16—H16A	0.9700
N4—C12	1.500 (2)	C16—H16B	0.9700
C1—C2	1.376 (2)	C17—C18	1.376 (3)
C1—C6	1.379 (3)	C17—C22	1.388 (2)
C2—C3	1.390 (2)	C18—C19	1.381 (3)
C2—H2	0.9300	C18—H18	0.9300
C3—C4	1.383 (3)	C19—C20	1.372 (3)
C3—H3	0.9300	C19—H19	0.9300
C4—C5	1.384 (2)	C20—C21	1.370 (3)
C5—C6	1.372 (2)	C20—H20	0.9300
C5—H5	0.9300	C21—C22	1.381 (3)
C6—H6	0.9300	C21—H21	0.9300
C7—C8	1.499 (3)	C22—H22	0.9300
C7—H7A	0.9700	C23—C28	1.378 (3)
C7—H7B	0.9700	C23—C24	1.392 (3)
C8—H8A	0.9600	C24—C25	1.382 (3)
C8—H8B	0.9600	C24—H24	0.9300
C8—H8C	0.9600	C25—C26	1.366 (3)
C9—C10	1.495 (2)	C25—H25	0.9300
C9—H9A	0.9600	C26—C27	1.367 (3)
C9—H9B	0.9600	C26—H26	0.9300
C9—H9C	0.9600	C27—C28	1.385 (3)
C10—C11	1.381 (2)	C27—H27	0.9300
C11—C12	1.525 (2)	C28—H28	0.9300

C4—O1—C7	118.54 (15)	N4—C13—H13A	109.7
C14—O2—C15	110.11 (17)	C14—C13—H13A	109.7
N2—N1—C10	111.22 (14)	N4—C13—H13B	109.7
N2—N1—C1	118.18 (14)	C14—C13—H13B	109.7
C10—N1—C1	130.58 (15)	H13A—C13—H13B	108.2
N3—N2—N1	106.67 (14)	O2—C14—C13	111.94 (19)
N2—N3—C11	109.81 (14)	O2—C14—H14A	109.2
C13—N4—C16	107.06 (16)	C13—C14—H14A	109.2
C13—N4—C12	113.90 (13)	O2—C14—H14B	109.2
C16—N4—C12	116.16 (14)	C13—C14—H14B	109.2
C2—C1—C6	120.09 (17)	H14A—C14—H14B	107.9
C2—C1—N1	121.16 (16)	O2—C15—C16	112.19 (19)
C6—C1—N1	118.67 (16)	O2—C15—H15A	109.2
C1—C2—C3	119.83 (18)	C16—C15—H15A	109.2
C1—C2—H2	120.1	O2—C15—H15B	109.2
C3—C2—H2	120.1	C16—C15—H15B	109.2
C4—C3—C2	119.99 (18)	H15A—C15—H15B	107.9
C4—C3—H3	120.0	N4—C16—C15	108.98 (17)
C2—C3—H3	120.0	N4—C16—H16A	109.9
O1—C4—C3	125.11 (17)	C15—C16—H16A	109.9
O1—C4—C5	115.37 (17)	N4—C16—H16B	109.9
C3—C4—C5	119.51 (17)	C15—C16—H16B	109.9
C6—C5—C4	120.41 (18)	H16A—C16—H16B	108.3
C6—C5—H5	119.8	C18—C17—C22	117.13 (18)
C4—C5—H5	119.8	C18—C17—C12	123.62 (16)
C5—C6—C1	120.16 (18)	C22—C17—C12	119.13 (17)
C5—C6—H6	119.9	C17—C18—C19	121.45 (18)
C1—C6—H6	119.9	C17—C18—H18	119.3
O1—C7—C8	107.35 (17)	C19—C18—H18	119.3
O1—C7—H7A	110.2	C20—C19—C18	120.8 (2)
C8—C7—H7A	110.2	C20—C19—H19	119.6
O1—C7—H7B	110.2	C18—C19—H19	119.6
C8—C7—H7B	110.2	C21—C20—C19	118.5 (2)
H7A—C7—H7B	108.5	C21—C20—H20	120.7
C7—C8—H8A	109.5	C19—C20—H20	120.7
C7—C8—H8B	109.5	C20—C21—C22	120.7 (2)
H8A—C8—H8B	109.5	C20—C21—H21	119.6
C7—C8—H8C	109.5	C22—C21—H21	119.6
H8A—C8—H8C	109.5	C21—C22—C17	121.3 (2)
H8B—C8—H8C	109.5	C21—C22—H22	119.3
C10—C9—H9A	109.5	C17—C22—H22	119.3
C10—C9—H9B	109.5	C28—C23—C24	117.90 (18)
H9A—C9—H9B	109.5	C28—C23—C12	122.05 (17)
C10—C9—H9C	109.5	C24—C23—C12	119.77 (17)
H9A—C9—H9C	109.5	C25—C24—C23	120.8 (2)
H9B—C9—H9C	109.5	C25—C24—H24	119.6
N1—C10—C11	104.16 (15)	C23—C24—H24	119.6
N1—C10—C9	120.80 (16)	C26—C25—C24	120.4 (2)
C11—C10—C9	134.81 (17)	C26—C25—H25	119.8
N3—C11—C10	108.11 (15)	C24—C25—H25	119.8
N3—C11—C12	119.18 (15)	C25—C26—C27	119.5 (2)
C10—C11—C12	132.53 (16)	C25—C26—H26	120.2
N4—C12—C11	110.13 (14)	C27—C26—H26	120.2
N4—C12—C23	109.34 (14)	C26—C27—C28	120.5 (2)
C11—C12—C23	112.04 (13)	C26—C27—H27	119.7
N4—C12—C17	108.86 (13)	C28—C27—H27	119.7
C11—C12—C17	112.32 (14)	C23—C28—C27	120.8 (2)
C23—C12—C17	103.93 (14)	C23—C28—H28	119.6
N4—C13—C14	109.61 (16)	C27—C28—H28	119.6

C10—N1—N2—N3	−0.7 (2)	C10—C11—C12—C23	−20.6 (3)
C1—N1—N2—N3	177.98 (16)	N3—C11—C12—C17	48.4 (2)
N1—N2—N3—C11	−0.4 (2)	C10—C11—C12—C17	−137.1 (2)
N2—N1—C1—C2	−126.47 (19)	C16—N4—C13—C14	60.2 (2)
C10—N1—C1—C2	51.9 (3)	C12—N4—C13—C14	−169.95 (15)
N2—N1—C1—C6	50.3 (2)	C15—O2—C14—C13	55.7 (2)
C10—N1—C1—C6	−131.3 (2)	N4—C13—C14—O2	−59.1 (2)
C6—C1—C2—C3	0.9 (3)	C14—O2—C15—C16	−56.5 (2)
N1—C1—C2—C3	177.65 (17)	C13—N4—C16—C15	−60.5 (2)
C1—C2—C3—C4	−1.0 (3)	C12—N4—C16—C15	170.98 (17)
C7—O1—C4—C3	−9.5 (3)	O2—C15—C16—N4	59.9 (2)
C7—O1—C4—C5	171.69 (18)	N4—C12—C17—C18	134.58 (18)
C2—C3—C4—O1	−178.55 (18)	C11—C12—C17—C18	12.3 (2)
C2—C3—C4—C5	0.2 (3)	C23—C12—C17—C18	−108.97 (19)
O1—C4—C5—C6	179.58 (18)	N4—C12—C17—C22	−49.4 (2)
C3—C4—C5—C6	0.7 (3)	C11—C12—C17—C22	−171.63 (16)
C4—C5—C6—C1	−0.8 (3)	C23—C12—C17—C22	67.1 (2)
C2—C1—C6—C5	0.0 (3)	C22—C17—C18—C19	0.5 (3)
N1—C1—C6—C5	−176.83 (17)	C12—C17—C18—C19	176.55 (18)
C4—O1—C7—C8	−175.31 (18)	C17—C18—C19—C20	0.0 (3)
N2—N1—C10—C11	1.4 (2)	C18—C19—C20—C21	−0.4 (3)
C1—N1—C10—C11	−177.04 (18)	C19—C20—C21—C22	0.3 (3)
N2—N1—C10—C9	−173.86 (17)	C20—C21—C22—C17	0.2 (3)
C1—N1—C10—C9	7.7 (3)	C18—C17—C22—C21	−0.6 (3)
N2—N3—C11—C10	1.3 (2)	C12—C17—C22—C21	−176.84 (18)
N2—N3—C11—C12	177.05 (16)	N4—C12—C23—C28	14.1 (2)
N1—C10—C11—N3	−1.6 (2)	C11—C12—C23—C28	136.44 (19)
C9—C10—C11—N3	172.7 (2)	C17—C12—C23—C28	−102.1 (2)
N1—C10—C11—C12	−176.61 (18)	N4—C12—C23—C24	−172.18 (15)
C9—C10—C11—C12	−2.3 (4)	C11—C12—C23—C24	−49.8 (2)
C13—N4—C12—C11	−50.70 (19)	C17—C12—C23—C24	71.71 (19)
C16—N4—C12—C11	74.41 (19)	C28—C23—C24—C25	−1.7 (3)
C13—N4—C12—C23	72.82 (18)	C12—C23—C24—C25	−175.68 (18)
C16—N4—C12—C23	−162.07 (15)	C23—C24—C25—C26	1.1 (3)
C13—N4—C12—C17	−174.25 (15)	C24—C25—C26—C27	0.2 (4)
C16—N4—C12—C17	−49.1 (2)	C25—C26—C27—C28	−0.8 (3)
N3—C11—C12—N4	−73.2 (2)	C24—C23—C28—C27	1.0 (3)
C10—C11—C12—N4	101.4 (2)	C12—C23—C28—C27	174.90 (18)
N3—C11—C12—C23	164.90 (16)	C26—C27—C28—C23	0.2 (3)

Experimental details

Crystal data
Chemical formula	C₂₈H₃₀N₄O₂
M_r	454.56
Crystal system, space group	Triclinic, P1
Temperature (K)	294
a, b, c (Å)	9.406 (1), 10.125 (1), 13.670 (2)
α, β, γ (°)	81.408 (1), 73.621 (1), 81.547 (1)
V (Å³)	1227.4 (2)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	0.08
Crystal size (mm)	0.28 × 0.25 × 0.20

Data collection
Diffractometer	Bruker APEXII diffractometer
Absorption correction	–
No. of measured, independent and observed [I > 2σ(I)] reflections	6395, 4437, 2830
R_int	0.019
(sin θ/λ)_max (Å⁻¹)	0.595

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.046, 0.126, 0.99
No. of reflections	4437
No. of parameters	309
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.14, −0.23

Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2008).

Acknowledgements

The authors thank the State Key Laboratory of Applied Organic Chemistry, Lanzhou University, and the University of Malaya for supporting this study.

References

Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Dong, H.-S., Huo, G.-Y. & Ma, Z.-T. (2008). Indian J. Chem. Sect. B, 47, 171–174. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2008). publCIF. In preparation. Google Scholar

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.