1487-50-9Relevant articles and documents
H-Phosphonate Synthesis and Biological Evaluation of an Immunomodulatory Phosphoglycolipid from Thermophilic Bacteria
Gan, Chin Heng,Hua, Kuo-Feng,Lam, Yulin,Li, Lan-Hui,Peng, Yi-Jen,Wei, Chih-Feng,Wijaya, Hadhi,Wu, Shih-Hsiung
supporting information, (2020/04/02)
The synthesis of a library of bacterial phosphoglycolipid, PGL-1, is described. Key features of the synthesis include regioselective esterification of the primary alcohol of the diacylglycerol moiety and an H-phosphonate method to install the phosphate in PGL-1 in comparison with earlier reported procedures. A representative set of PGL-1 analogues was prepared and evaluated for their biological activities. Results showed that the immunological activity of PGL-1 is dependent on the chain lengths of the fatty acids.
Total synthesis and mass spectrometric analysis of a: Mycobacterium tuberculosis phosphatidylglycerol featuring a two-step synthesis of (R)-tuberculostearic acid
Burugupalli, Satvika,Richardson, Mark B.,Williams, Spencer J.
, p. 7422 - 7429 (2017/09/25)
We report the total synthesis of (R)-tuberculostearic acid-containing Mycobacterium tuberculosis phosphatidylglycerol (PG). The approach features a two-step synthesis of (R)-tuberculostearic acid, involving an (S)-citronellyl bromide linchpin, and the pho
Synthesis and structure of phosphatidylinositol dimannoside
Dyer, Blake S.,Jones, Jeremy D.,Ainge, Gary D.,Denis, Michel,Larsen, David S.,Painter, Gavin F.
, p. 3282 - 3288 (2008/02/04)
(Chemical Equation Presented) (R)-Tuberculostearic acid (2) was synthesized in seven steps from (S)-citronellol (5). The carbon chain of 2 was assembled by copper-catalyzed cross coupling of (5)-citronellol tosylate (6) and hexylmagnesium bromide; subsequent ozonolysis and reaction with 6-benzyloxyhexylmagnesium bromide furnished alcohol 10. Functional group manipulation afforded (R)-2 in 49% overall yield from 5. DCC coupling of (R)-2 with 3-O-benzyl-1-O-palmitoyl-sn-glycerol (16), followed by hydrogenolytic removal of the benzyl group and treatment with benzyl bis(diisopropyl) phosphoramidite, afforded phosphoramidite 20. Tetrazole-mediated coupling of 20 with PIM1 head group 21 gave 22, and subsequent debenzylation afforded phosphatidylinositol mono-mannoside, PIM1 (23). Similarly, coupling of 20 and 24 and removal of the benzyl protecting groups gave PIM2 (1c). Both 23 and 1c have a clearly defined acylation pattern, which was confirmed by mass spectrometry, with sn-1 palmitoyl and sn-2 tuberculostearoyl groups on the glycerol moiety. Both 23 and 1c were shown to modulate the release of the pro-inflammatory cytokine, IL-12, in a dendritic cell assay.