Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 14215-68-0, Name is N-((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide, molecular formula is C8H15NO6. In a Article，once mentioned of 14215-68-0, name: N-((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide
N-Acetyl-lactosamine(beta-D-Galp-(1<*>4)-D-GlcpNAc) was synthesized regioselectively with the aid of the transglycosylation activity of beta-galactosidase isolated from Diplococcus pneumoniae using p-nitrophenyl beta-D-galactopyranoside as the donor.Also, transglycosylation of the sialyl group in an alpha-(2<*>8)-linked sialic acid dimer or p-nitrophenyl glycoside of sialic acid to N-acetyl-lactosamine was performed using sialidases of various origins.When sialidase from Clostridium perfringens, Arthrobacter ureafacients, or Vibrio cholerae was used, alpha-(2<*>6)-linked sialyl N-acetyl-lactosamine was obtained regioselectively.In contrast, when sialidase from newcastle disease virus was used, the alpha-(2<*>3)-linked isomer was obtained regioselectively.The regioselectivity of the transglycosylation reaction using beta-galactosidase and sialidase was compared with hydrolysis specificity toward the same linkages.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics