A lycorine derivative of Formula (I), and a pharmaceutically acceptable salt, a preparation method, a pharmaceutical composition and use thereof wherein the lycorine derivative has obvious antiviral activity and is useful in the treatment of viral diseases such as hand-foot-mouth disease.
Certain N-deacetylcolchicine and N-deacetylthiocolchine derivatives are described wherein the 7-N position on the B ring is substituted with the group —C(O)—(CHR
4
)
m
-AR, wherein m is an integer of 0-10, A is S, O, N or a covalent bond; R
1
is substituted phenyl or substituted benzoyl; optionally substituted cycloalkyl of 3-7 carbons; optionally substituted naphtyl; an optionally substituted imide ring; an optionally substituted 5 or 6 member heterocycle with at least one N, S, or O in the ring; or an optionally substituted fused heterocyclic or fused carboxyclic ring system; R
2
(at the
2
-position of the A ring) is methoxy, hydroxy, or methylenedioxy when taken together with R
3
; R
3
(at the
3
-position of the A ring) is methoxy, hydroxy, a monosaccharide radical, or is methylenedioxy when taken together with R
2
; and R
4
is H or is H or methyl when m is 1. Also dimers of such compounds are disclosed. When combined with suitable pharmaceutical excipients, these compounds are useful for treating various types of cancer.
Phenoxyacetate herbicides, such as 2,4-D and MCPA, having a high toxicity to non-target organisms are commonly used for controlling broadleaf weeds in agriculture. However, novel and environmentally friendly analogs are constantly sought after. For this purpose, various substituents at the phenyl group have been tested to find the optimal balance between the potent herbicidal activity and safety for
Metal-(phenylthio)acetic acid interactions—IV. The crystal structure of tetra-μ-[(2,4-dichloro-5-methylphenylthio)acetato-O,O′]-bis[acetonecopper(II)], a dimeric complex having coordinated acetone molecules
作者:Graham Smith、Eric J. O'reilly、Colin H.L. Kennard、Thomas C.W. Mak、Yip Wai-Hing
DOI:10.1016/s0277-5387(00)87008-4
日期:1985.1
Abstract The crystalstructure of the acetone adduct of copper(II) (2,4-dichloro-5-methylphenylthio)acetate has been determined by single crystalX-ray diffraction and refined by least squares to 0.051 for 3701 “observed” reflections. Crystals of the compound are triclinic, space group P 1 with one dimer in a cell with a = 8.357(1), b = 12.502(2), c = 13.721(2) A, α = 107.20(1), β = 96.09(1), γ = 104