"BENZOPYRAN DERIVATIVE OF FORMULA (I) OR (II) OR PHARMACEUTICALLY ACCEPTABLE SALT OF THE SAME, MEDICINAL PRODUCT AND MEDICINAL PRODUCTS FOR THE ARRYTHMIA TREATMENT". This invention relates to benzopyran derivatives of formula (I) or (II), or pharmaceutically acceptable salts thereof, wherein R 1...
The invention relates to compounds of formula: <IMAGE> I in which: A is selected from O or S; B is selected from C or N; Z1 is selected from C1-C4 alkylene or phenylene; Z2 is C1-C4 alkylene; W is NR1R2, in which R1 is selected from H or C1-C4 alkyl and R2 is selected...
The derivative formula and the proof here will enumerate the derivatives of five basic elementary functions and their derivation process (elementary function can be calculated by it): basic derivative formula 1. constant function (i.e. constant) y=c (C constant) y'=0 2. power function y=x^...
A Formula for the kth Derivative of e-z2F2(a,r 1;b 1,r;z) Journal of the Institute of EngineeringRathie, A. K.López-Bonilla, J.Sánchez-Meléndez, Gabriela
A theoretical understanding of furan and its congeners followed in the wake of the progress with the benzene problem, but for the five-membered heterocyclic compounds Bamberger’s centric formula was always the most reasonable one, as Kekulé structures could not be written at all. It is not now...
We have given the function x^2-2 , Then f(x)=x^2-2 Now by derivative formula, f'(a)=lim(h->0)(f(a+h)-f(a))/h f'(a)=lim(h->0)(((a+h)^2-2)-(a^2-2))/h At x=a=10 f'(10)=lim(h->0)(((10+h)^2-2)-(10^2-2))/h f'(10)=lim(h->0)((10^2+h...
1,3,2-oxazaphospholidine stabilizers 1,3,2-oxazaphospholidine derivatives of the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process ... PA Odorisio,SD Past...
2. 微分 Differential 2.1 定义 设函数 y=f\left( x \right) 在某区间 {\mathcal {I}} 内有定义。对于 {\mathcal {I}} 内一点 x_{0} ,当 x_{0} 变动到附近的 x_{0}+\triangle x (也在此区间内)时,如果函数的增量 \Delta y=f\left( x_{0}+ \Delta x\right)-f\left( x_{0} \...
Functionalization of the {P8W48} polyoxotungstate (POT) archetype with aromatic organoarsonates results in the first homometallic {P8W48} derivatives, with the general formula [(RAsVO)4PV8WVI48O184]32−[R = C6H5(1) orp-(H2N)C6H4(2)]. S... X Yi,NV Izarova,P K?Gerler - 《Ino...
Optically Active Phthalamide Derivative, Agricultural or Horticultural Insecticide, and Method of Using the Same The present invention relates to an optically active phthalamide derivative represented by the following formula (I): (wherein each of Rand Rrepresents H, optionally substituted C1-C6 ...