3,5-Diphenyl-1H-pyrazole derivatives. V - 1-acetyl-4-hydroxy-3,5-diphenyl-2-pyrazoline esters, 4-hydroxy-3,5-diphenyl-1H-pyrazole esters and N-substituted 4-(3-amino-2-hydroxy-1-propoxy)-1-metyl-3,5-diphenyl-1H- pyrazoles with antiarrhythmic, sedative and