p1. Two new flavonol glycosides were isolated from the fruit of Pyrus communis L. cultivar Bon Chrétien. These were identified as isorhamnetin 3-rhamnogalactoside and a derivative of isorhamnetin 3-glucoside which was associated (possibly acylated) with an unknown aliphatic organic acid. 2. The melting point of isorhamnetin 3-glucoside isolated from Bon Chrétien pears is different from that of isorhamnetin 3-glucoside previously isolated from Argemone mexicana and Calendula officinalis. 3. Isorhamnetin 3-rhamnoglucoside was isolated from the fruit of Pyrus communis L. cultivar Bon Chrétien. This glycoside appears to be identical with narcissin, previously isolated from Narcissus tazetta and Lilium auratum. 4. Isoquercitrin, previously reported to be present in pear leaves, was isolated from the fruit of Bon Chrétien pears. 5. The isolated glycosides were present in the peels and flesh of the fruit, but were absent from the cores./p
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机译：> 1。从Pyrus communis L. cultivar BonChrétien的果实中分离了两种新的黄酮醇苷。这些被鉴定为异鼠李素3-鼠李糖半乳糖苷和异鼠李素3-葡糖苷的衍生物，其与未知的脂族有机酸结合（可能被酰化）。 2.从BonChrétien梨中分离出的异鼠李素3-葡糖苷的熔点不同于先前从墨西哥Argemone和金盏菊中分离出的异鼠李素3-葡糖苷的熔点。 3.从Pyrus communis L. cultivar BonChrétien的果实中分离出异鼠李素3-鼠李糖苷。这种糖苷似乎与水仙素相同，后者是先前从水仙和水百合中分离出来的。 4.以前据报道存在于梨叶中的异槲皮苷是从BonChrétien梨的果实中分离出来的。 5.分离的糖苷存在于水果的果皮和果肉中，但不存在于果核中。
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