申请人:NICHIREI CORPORATION
公开号:EP0211573A1
公开(公告)日:1987-02-25
A compound of formula (I):
wherein ring system A is
or
having the properties:
a) molecular weight:294
b) melting point:185 - 189 (187)°C
c) specific rotation:[α]20D = 0°
d) ultraviolet absorption spectrum:as shown in Figure 1 of the accompanying drawings
e) infrared absorption spectrum:as shown in Figure 2 of the accompanying drawings
f) solubility:easily soluble under neutral and acidic conditions in organic solvents such as methanol, acetone, ethyl acetate, chloroform or benzene; easily soluble under alkaline conditions in water
g) color reaction: negative:anthrone-H2SO4, ninhidrin and Dragendorf reactions;
g) color reaction: positive:ferrous chloride reaction
h) nature:acidic substance (water soluble under alkaline conditions)
i) color and crystalline formdeep red-brown fine needle crystals,
has antimicrobial activity.
式(I)化合物:
其中环系统 A 是
或
具有以下性质
a) 分子量:294
b) 熔点:185 - 189 (187)°C
c) 比旋光度:[α]20D = 0°
d) 紫外吸收光谱:如附图 1 所示
e) 红外吸收光谱:如附图 2 所示
f) 溶解性:在中性和酸性条件下,易溶于甲醇、丙酮、乙酸乙酯、氯仿或苯等有机溶剂;在碱性条件下,易溶于水。
g) 颜色反应:阴性:蒽酮-H2SO4、茚三酮和 Dragendorf 反应;
g) 颜色反应:阳性:氯化亚铁反应
h) 性质:酸性物质(在碱性条件下可溶于水)
i) 颜色和结晶形式:深红棕色细针状结晶、
具有抗菌活性。