What is the derivative formula? The derivative of a function y = f(x) can be expressed as dy/dx = d/dx f(x), where dy/dx is called derivative of y with respect to x and d/dx f(x) is the derivative of f(x) with respect to x. ...
One particular class of compounds of formula (1) is that wherein g is zero. In the compounds according to the invention the group Ar1 is preferably a phenyl or monocyclic heteroaromatic group. Particularly useful groups of this type are five- or six-membered heteroaromatic groups as described ...
摘要: The present invention relates to carboxylic acid derivatives of the formulawhere the radicals have the meanings stated in the description, to the preparation of these compounds and to their use as drugs.收藏 引用 批量引用 报错 分享
we divided the latter into 6 structural TMS classes, based on the moiety that the TMS group was attached to (Additional file6). For each TMS class, the median number of candidates in all candidate sets in the class was plotted against the proportion of TMS derivatives for which...
A novel class of inhibitors for steroid 5α-reductase: Synthesis and evaluation of umbelliferone derivatives. Bioorganic & Medicinal Chemistry Letters. 2001;11:2361-2363. DOI: 10.1016/S0960-894X(01)00429-2 19. Zahradnik M. The Production and Application of Fluorescent Brightening Agents. ...
Quinuclidine derivatives of formula, and their pharmaceutically acceptable salts, in which: R 1 is hydrogen or hydroxy; R 2 is hydrogen; pr R 1 and R 2 are joined together so that CR 1 -CR 2 is a double bond; X is selected from --CH 2 CH 2 --, --CH CH--, --C C--, ...
The chemical formula of the prepared Schiff base compounds. Full size image Elemental scheme of FT-IR and1HNMR spectra confirmed the chemical characteristics of the prepared compound. Elementary compositions are performed using Vario Elementar instrument for the prepared samples. In the range of 500–...
following formula, we calculated the medium apparent diameter (MAD) of the two little pieces of the hair fiber placed in the cover glass. (class1 × 2) + 1 = AD1 (class2 × 2) + 1 = AD2 (AD1 + AD2)/2 = MAD of the hair fiber...
Yan He2, Yang Zhang2, Rong Fang1, Jian-ping Wang2, Zeng-wei Luo2, Guang-min Yao2, Jin-wen Zhang3, Geng Zhang4, Hong-ping Song1 & Yong-hui Zhang2 Coumarin derivatives are an important class of C6–C3 plant metabolites that show a variety of bioactivities. ...
Novel phosphate starch derivatives are useful in wound healing. Novel phosphorylated cottons are useful in wound healing. Silver-derivatized wound care products are provided which survive washing and remain part of the wound care product. Silver-derivatized wound care products are provided that have fav...