The present invention provides a stable synthetic saccharide of Hib polyribosylribitol- phosphate (PRP) derivative and conjugate thereof. Said saccharide, said conjugate and pharmaceutical compositions thereof are hydrolysis-resistant, long-term stable and useful for the prevention and/or treatment of diseases associated with Haemophilus influenzae, and more specifically of diseases associated with Haemophilus influenzae type b, preferably diseases selected from meningitis, pneumonia, and epiglotitis. They have general formula (I): wherein A is formula (II) or formula (III); B is formula (IV); C is formula (V); D is formula (VI); E is formula (VII); F is formula (VIII) or formula (IX).
本发明提供了Hib多
核糖核糖醇
磷酸(PRP)衍
生物的稳定合成糖苷及其共轭物。所述糖苷、所述共轭物及其药物组成物对
水解具有抵抗性,长期稳定,并且适用于预防和/或治疗与流感嗜血杆菌相关的疾病,更具体地说是与流感嗜血杆菌b型相关的疾病,优选从脑膜炎、肺炎和会厌炎中选择的疾病。它们具有通用式(I):其中A为式(II)或式(III);B为式(IV);C为式(V);D为式(VI);E为式(VII);F为式(VIII)或式(IX)。