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    • 32. 发明授权
    • Malic acid and oxalacetic acid derivatives
    • 苹果酸和草乙酸衍生物
    • US06489504B2
    • 2002-12-03
    • US09801648
    • 2001-03-09
    • Yasutaka IshiiTatsuya Nakano
    • Yasutaka IshiiTatsuya Nakano
    • C07C6521
    • C07C69/716C07C69/675C07C2603/00C07C2603/74
    • A malic acid or oxalacetic acid derivative is represented by the following formula (1): wherein ring Z is an alicyclic carbon ring; each of Ra and Rb is independently a hydrogen atom, a metal atom, or an organic group; and Y is a hydroxyl group or an oxygen atom, where ring Z is a bridged carbon ring or a monocyclic carbon ring having eight or more members when Y is an oxygen atom. The alicyclic carbon ring includes, for example, cyclooctane ring and adamantane ring. This compound is a novel malic acid derivative having an alicyclic group bonded to a carbon atom at the 3-position, or a novel oxalacetic acid derivative having a specific alicyclic group bonded to a carbon atom at the 3-position.
    • 苹果酸或草乙酸衍生物由下式(1)表示:其中环Z是脂环碳环; Ra和Rb各自独立地为氢原子,金属原子或有机基团; Y为羟基或氧原子,当Y为氧原子时,其中环Z为桥碳环或具有8个以上成员的单环碳环。 脂环碳环包括例如环辛烷环和金刚烷环。 该化合物是具有与3-位上的碳原子键合的脂环基的新型苹果酸衍生物,或具有与3-位上的碳原子键合的特定脂环基的新型草乙酸衍生物。