Benzylated mannopyranosyl carboxylates 苄基保护甘露糖羧酸酯
In guaran, about one-half of the D-mannopyranosyl main-chain units contain a D-galactopyranosyl side chain.
在瓜拉那中约一半D-吡喃甘露糖主链的单元含一个D-吡喃半乳糖侧链。
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