93793-83-0

基本信息
盐酸醋酸罗沙替丁
醋酸罗沙替丁盐酸
盐酸罗沙替丁盐酸盐
盐酸罗沙替丁醋酸酯
盐酸罗沙替丁醋酸脂
罗沙替丁醋酸氢氯化物
罗沙替丁醋酸酯盐酸盐
盐酸罗沙替丁醋酸酯盐酸盐
罗沙替丁杂质2(盐酸醋酸罗沙替丁)
Roxit
Xarcin
Neo H2
tzu0460
tzu-0460
93793-83-0
PIFEATIDINE
Roxatidine acetate h
ROXATIDINE ACETATE HCL
物理化学性质
制备方法

108-24-7

78273-80-0

93793-83-0
1. 将58g(0.930mol,纯度90%)氢氧化钾溶解于1160g水中,冷却至20-25℃。随后加入300g(0.854mol)草酸罗沙坦(化合物9,实施例7制备),搅拌混合。 2. 向反应体系中加入乙酸乙酯(600g + 450g),分离有机相,合并后用无水硫酸钠干燥,过滤。减压浓缩滤液,得到251g Roxaidine(化合物8)。 3. 将251g Roxaidine溶解于500g冰醋酸中,加入170g乙酸酐。加热回流2小时,确认反应完成后,减压浓缩除去乙酸,冷却至15-20℃。 4. 加入600g水,随后加入600g乙酸乙酯。在搅拌下,用含有300g碳酸钾的水溶液调节pH至9-10。用乙酸乙酯(400g + 300g)萃取,合并有机相,用无水硫酸钠干燥,过滤后浓缩滤液,得到280g乙酸罗哌丁酯(化合物10)。 5. 将280g(0.804mol)乙酸罗哌丁酯溶解于1400g丙酮中,冷却至0-5℃。逐滴加入含有32g氯化氢的乙酸乙酯溶液,析出固体。在0-5℃下结晶35小时,过滤并干燥,得到295g醋酸罗扎替丁盐酸盐(理论产量:328.58g,基于300g化合物9计算;产率:89.8%)。
参考文献:
[1] Patent: CN107698538, 2018, A. Location in patent: Paragraph 0074-0077
常见问题列表
Target | Value |
Histamine H2 receptor | 3.2 μM |
Roxatidine Acetate Hydrochloride (6.25 μM, 12.5 μM, and 25 μM; pre-treatment for 30 min) suppresses the PMACI-induced activation of p38 MAPK, but does not affect the phosphorylation of ERK or JNK. The total ERK 1/2, JNK, and p38 MAPK levels are unaffected by roxatidine in human mast-cells-1 (HMC-1) cells.
Roxatidine Acetate Hydrochloride (oral gavage; 20 mg/kg; single dose) inhibits Compound 48/80-increased TNF-α, IL-6, and IL-1β production and mRNA expression. Additionally, Roxatidine decreases the compound 48/80-induced degradation of procaspase-1 and appearance of the corresponding cleaved bands in mice.
Animal Model: | ICR male mice (6 weeks old) |
Dosage: | 20 mg/kg |
Administration: | Oral gavage; 20 mg/kg; single dose |
Result: | Suppressed compound 48/80-induced allergic inflammation in anaphylactic animal model. |