3-O-β-D-galactopyranosyl-α-D-galactose | 72597-55-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-O-β-D-galactopyranosyl-α-D-galactose
• 英文别名: β-D-Galp-(1->3)-α-D-Galp；3-O-β-D-Galactopyranosyl-D-galactopyranose；3-O-β-D-Galactopyranosyl-D-galactose；3-O-β-Galactopyranosyl-D-galactose；3-O-beta-D-galactopyranosyl-alpha-D-galactopyranose；(2S,3R,4S,5S,6R)-6-(hydroxymethyl)-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2,3,5-triol
• CAS: 72597-55-8
• 化学式: C₁₂H₂₂O₁₁
• 分子量: 342.3
• InChiKey: QIGJYVCQYDKYDW-UAGFKQJBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -4.2
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  190
• 氢给体数：
  8
• 氢受体数：
  11

文献信息

• Methods for synthesis of alpha-d-gal (1~>3) gal-containing oligosaccharides
  申请人：——

  公开号：US20040058888A1

  公开（公告）日：2004-03-25

  This invention relates to reagents and methods for synthesis of biologically active di- and tri-saccharides comprising &agr;-D-Gal(1→3)-D-Gal. In particular the invention provides novel reagents, intermediates and processes for the solution or solid phase synthesis of &agr;-D-galactopyranosyl-(1→3)-D-galactose, and derivatives thereof. In one preferred embodiments the invention provides a protected monosaccharide building block of general formula (II): in which R 3 is methoxy or methyl; R 1 is H, benzoyl, pivaloyl, 4-chlorobenzoyl, acetyl, chloroacetyl, levulinoyl, 4-methylbenzoyl, benzyl, 3,4-methylenedioxybenzyl, 4-methoxybenzyl, 4-chlorobenzyl, 4-acetamidobenzyl, or 4-azidobenzyl; and R 2 is H, Fmoc, benzoyl, pivaloyl, 4-chlorobenzoyl, acetyl, chloroacetyl, levulinoyl, 4-methylbenzoyl, benzyl, 3,4-methylenedioxybenzyl, 4-methoxybenzyl, 4 -chlorobenzyl, 4-acetamidobenzyl, or 4-azidobenzyl. 1

  本发明涉及用于合成具有生物活性的二糖和三糖的试剂和方法，这些糖包括α-D-Gal(1→3)-D-Gal。特别地，本发明提供了用于溶液或固相合成α-D-半乳糖基-(1→3)-D-半乳糖及其衍生物的新试剂、中间体和工艺。在一个优选的实施例中，本发明提供了一种保护的单糖构建块，其通式为(II)：其中R3是甲氧基或甲基；R1是H、苯甲酰基、特戊酰基、4-氯苯甲酰基、乙酰基、氯乙酰基、乙酰乙酰基、4-甲基苯甲酰基、苄基、3,4-亚甲二氧基苄基、4-甲氧基苄基、4-氯苄基、4-乙酰氨基苄基或4-叠氮苄基；R2是H、芴甲氧羰基(Fmoc)、苯甲酰基、特戊酰基、4-氯苯甲酰基、乙酰基、氯乙酰基、乙酰乙酰基、4-甲基苯甲酰基、苄基、3,4-亚甲二氧基苄基、4-甲氧基苄基、4-氯苄基、4-乙酰氨基苄基或4-叠氮苄基。
• MEDIUM WITH A PLANT NON-METABOLIZABLE SUGAR FOR IMPROVING SEED GERMINATION
  申请人：WEYERHAEUSER NR COMPANY

  公开号：US20160081336A1

  公开（公告）日：2016-03-24

  What is described is a nutritive media for a manufactured seed comprising a plant non-metabolizable sugar and a manufactured seed comprising plant non-metabolizable sugar in its nutritive medium