Synthesis of Forsythenethoside A, a Neuroprotective Macrocyclic Phenylethanoid Glycoside, and NMR Analysis of Conformers was written by Hu, Zhifei;Silipo, Alba;Li, Wei;Molinaro, Antonio;Yu, Biao. And the article was included in Journal of Organic Chemistry in 2019.HPLC of Formula: 604-69-3 The following contents are mentioned in the article:
Forsythenethoside A (1) is a structurally unique macrocyclic phenylethanoid glycoside, which was isolated from Forsythia suspensa and displayed considerable neuroprotective activities. Here, we report its first chem. synthesis via a longest linear sequence of 14 steps in 5% overall yield wherein intramol. oxidative coupling was successfully employed to realize the pivotal macrocyclization. NMR anal. revealed the existence of an unexpected conformational interconversion of the congested macrocycles. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3HPLC of Formula: 604-69-3).
(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.HPLC of Formula: 604-69-3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics