阿昔洛韋
acycloguanosine
CAS 編號:59277-89-3
包裝規格:暫無規格型號
Packing: 25kg cardboard drum
產品說明: 性質:白色結晶性粉末。無臭無味,
其鈉鹽溶于水。
標準:中國藥典2005版按無水物計算,含C8H11N5O3
得少于98.0%;溶液的澄清度與顏色應符合規定;有關
物質應符合規定;鳥嘌呤應符合規定;干燥失重不得過6.0%;
熾灼殘渣不得過0.1%?;含重金屬不得過0.001%。
制法:減壓蒸去過量的乙酐,冷至0℃過濾,濾餅用乙醇和水洗,
干燥,得N,N′-二乙酰鳥嘌呤。或者鳥嘌呤三甲基硅烷化后,
再和2芐氧基乙氧基甲基氯反應后,再去掉芐基得阿昔洛韋。
將乙酐、乙酸和對甲苯磺酸混合,冷至1O℃以下。鳥嘌呤和乙酐混合,
加入少量乙酸和乙酸鋅,攪拌回流。濾餅用氯仿洗滌,干燥后溶于40%
甲胺水溶液,攪拌回流。加入氯仿,過濾。冷卻,過濾,濾液減壓濃縮
至漿狀物,冷卻后用乙醇洗,過濾。濾餅用水重結晶,得阿昔洛韋。
以鳥嘌呤為原料。
用途:該品是嘌呤核苷衍生物,對DNA的合成有抑制作用,其抗皰疹病
毒活性比阿糖腺苷強160倍。臨床用于單純性皰疹病毒腦炎、皰疹病毒
角膜炎及外生殖器感染、艾滋病的水痘帶狀皰疹病毒感染和巨細胞病毒
感染,慢性乙型肝炎等。
acycloguanosine
CAS No. :59277-89-3
Package: No Specification
Packing: 25kg cardboard drum
Specification: CP/EP6.0
Product Description: Nature: white crystalline powder.
Odorless and tasteless, the sodium salt dissolved in water.
Standard: Chinese Pharmacopoeia 2005 edition by the anhydrous
basis, may be less than 98.0% with C8H11N5O3; Clarity and color
of the solution should meet the requirements; related materials
should meet the requirements; guanine should meet the requirements;
not over 6.0% Loss on drying; Chi Residue on Ignition shall not
be over 0.1% ?; 0.001% heavy metals may not have.
For herpes simplex virus encephalitis, keratitis and genital herpes
infection, AIDS, varicella zoster virus infection and cytomegalovirus
infection, chronic hepatitis B and so on.