Table 3.

The crystal X-ray and experimental data of compounds 13, 15 and 16.

	Compound 13	Compound 15	Compound 16
Empirical formula	C16H17NO4	C15H15NO3	C17H19NO4
Formula weight	287.31	257.28	301.33
Temperature	273(2)K	273(2)K	273(2)K
Wavelength	0.71073 Å	0.71073 Å	0.71073 Å
Crystal system	Orthorhombic	Orthorhombic	Monoclinic
Space group	Pna2(1)	P2(1)2(1)2(1)	P2(1)/c
a	9.7203(7) Å	5.3625(2)Å	11.1898(4) Å
b	30.576(2) Å	11.1755(5) Å	17.5567(6) Å
c	4.8328(3) Å	21.9532(10)Å	8.1013(3) Å
α	90°	90°	90°
β	90°	90°	98.0720(10)°
γ	90°	90°	90°
Volume	1436.36(17)A3	1315.63(10)A3	1575.78(10) A3
Z	4	4	4
Calculated density	1.329 mg/m3	1.299 mg/m3	1.270 mg/m3
Absorption coefficient	0.096 mm−1	0.091 mm−1	0.091 mm−1
F(000)	608	544	640
Crystal size	0.67 × 0.16 × 0.14 mm	0.77 × 0.49 × 0.45 mm	0.46 × 0.44 × 0.42 mm
θ range	1.33 to 25.50 °	1.86 to 25.50°	1.84 to 25.50
Reflections Collected	8206	7839	9213
Reflections Unique	2629	2426	2934
(Rint)	0.0216	0.0165	0.0148
R1 with I > 2σ(I)	0.0347	0.0369	0.0352
R2 with I > 2σ(I)	0.0808	0.1066	0.0967
R1 for all data	0.0412	0.0386	0.0399
R2 for all data	0.0855	0.1086	0.1012
Goodness of fit	1.059	1.091	1.046
max/min ρ eA°−3	0.107 and −0.129	0.349 and −0.295	0.140 and −0.141
CCDC number	CCDC 980015	CCDC 980014	CCDC 980016