der Benzylgruppe aus acyl- bzw. alkylsubstituierten Glycerin-benzyläther-(1)- bzw. -(2)-phosphorsäure-(3)-cholinestern (10) wurden analysenreine und dünnschichtchromatographisch einheitliche Racemate von Ester-(2ab) und Äther-Lysolecithinen (2c, 4) erhalten. Die Acylverbindungen erwiesen sich in bezug auf RF-Wert und Infrarotspektrum als identisch mit enzymatisch aus Lecithin ex ovo erhaltenem L-Lysolecithin
Glycerophosphoethanolamines
with α-branched fatty acids were synthesized, varying the side-chain length. Differential
scanning calorimetry and X-ray diffraction were applied to investigate the influence of the chemical alteration
on the physico-chemical parameters and the structures formed in lipid–water dispersions. The results show that
the introduction and stepwise elongation of side-chains decrease the transition temperature from gel
to liquid-crystalline phases. The
Tm values pass through a minimum and increase slightly on going to the triple-chain
lipid. The change in the transition parameters is connected with a modified polymorphism. Short side-chains
induce a tilt in the gel state and the elongation of the branch leads to interdigitated gel phases. With increasing
side-chain length, non-lamellar liquid-crystalline phases are stabilized. For the
long-branched derivative,
an interdigitation
of head-groups from adjacent bilayers is proposed.
通过改变侧链长度,合成了具有 α-支链脂肪酸的甘油磷乙醇胺。应用差示扫描量热法和 X 射线衍射法研究了化学变化对物理化学参数和在脂水分散体中形成的结构的影响。结果表明,侧链的引入和逐步拉长降低了从凝胶到液晶相的转变温度。Tm值通过一个最小值,并在进入三链脂质时略有上升。转变参数的变化与改变的多态性有关。短侧链会导致凝胶态的倾斜,而分支的拉长则会导致相互咬合的凝胶相。随着侧链长度的增加,非胶束液晶相得到稳定。对于长支链衍生物,提出了相邻双分子层的头基团相互咬合的观点。
[EN] PHOSPHOLIPID COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS PHOSPHOLIPIDIQUES ET LEURS UTILISATIONS
申请人:GILEAD SCIENCES INC
公开号:WO2022081973A1
公开(公告)日:2022-04-21
Compounds and methods of using said compounds, alone or in combination with additional agents, and pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
The invention relates to compounds which are immunomodulatory compounds and, in particular, can induce IL-12 secretion. The invention also relates to compositions containing the compounds, precursors, and prodrugs of these compounds, use of these compounds as adjuvants in combination with vaccines, and use of these compounds for treatment of diseases or conditions relating to infection, atopic disorders, or cancer.