Synthesis,Crystal Structure,Hirshfeld Surface Analysis and Biological Activity of 1-(Bis(4-methoxyphenyl)-methyl)-4-(2-(2-methylphenoxy)ethyl)piperazine

In this study, a novel phenoxyethylamine derivative 1-(bis(4-methoxy phenyl)-methyl)-4-(2-(2-methylphenoxy)ethyl)piperazine(C28 H35 N2 O3, Mr = 454.58) has been synthesized and its structure was characterized by 1 H NMR, 13 C NMR, HRMS and single-crystal X-ray diffraction. The compound crystallizes in triclinic system, space group P1 with a = 6.1980(12),b = 12.212(2), c = 19.527(4) ?, α = 93.08(3)°, β = 98.62(3)°, γ = 90.72(3)°, V = 1458.9(5) ?3, Z =2, Dc = 1.035 g/cm3, F(000) = 489, μ = 0.067 mm-1, Mo Kα radiation(λ = 0.71073 ?), the final R= 0.0693 and wR = 0.1759 for 3030 observed reflections with I 2σ(I). The bioassay results indicated that the title compound 5 displayed effective activities against glutamine-induced neurotoxicity in PC12 cells.     

Synthesis,Crystal Structure and Neuroprotection of Methyl 2-（（4-（2-（2-Methylphenoxy）acetyl）- piperazin-1-yl）-methyl）benzoate①

A new phenoxyacetamide derivative, methyl 2-((4-(2-(2-methylphenoxy)acetyl)piperazin-1-yl)methyl)benzoate(C22H26N2O4, Mr = 382.45), has been synthesized and characterized by 1H NMR, 13 C NMR, H RMS and single-crystal X-ray diffraction. The crystal is of monoclinic system, space group P21/c with a = 11.145(2), b = 13.667(3), c = 13.998(3)A, β = 112.01(3)o, V = 1976.8(7)A3, Z = 4, Dc = 1.285 g/cm3, F(000) = 816, μ = 0.089 mm-1, MoKα radiation(λ = 0.71073 A), the final R = 0.0602 and wR = 0.1533 for 2343 observed reflections with I 2σ(I). Intramolecular C–H···O interactions as well as intermolecular C–H···O hydrogen bonds help to stabilize the crystal structure. The preliminary bioassay results show that the title compound exhibits potent neuroprotective activity.