US PATENT SUBCLASS 435 / 74
.~.~ Preparing O-glycoside (e.g., glucosides, etc.)

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

41  DF  MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION {26}
72  DF  .~ Preparing compound containing saccharide radical {13}
74.~.~ Preparing O-glycoside (e.g., glucosides, etc.) {4}
75  DF  .~.~.~> Oxygen of the saccharide radical is directly bonded to a nonsaccharide heterocyclic ring or a fused- or bridged-ring system which contains a nonsaccharide heterocyclic ring (e.g., coumermycin, novobiocin, etc.) {1}
77  DF  .~.~.~> Oxygen atom of the saccharide radical is directly linked through only acyclic carbon atoms to a nonsaccharide heterocyclic ring (e.g., bleomycin, phleomycin, etc.)
78  DF  .~.~.~> Oxygen atom of the saccharide radical is directly bonded to a condensed ring system having three or more carboxyclic rings (e.g., dauomycin, adriamycin, etc.)
79  DF  .~.~.~> Oxygen atom of the saccharide radical is bonded to a cyclohexyl radical (e.g., kasugamycin, etc.) {1}

DEFINITION

Classification: 435/74

Preparing O-glycoside (e.g, glucosides, etc.):

(under subclass 72) Processes wherein the product synthesized is an acetal derivative of a cyclic form of sugars in which the hydrogen atom of the hemiacetal hydroxyl has been replaced by an alkyl, aralkyl, or aryl group.

(1) Note. An O-glycoside is a compound having a sugar moiety connected to an aglycone moiety via oxygen.

(2) Note. The aglycone is a nonsaccharide material, e.g., benzene, indoxyl, anthracene, etc.

(3) Note. On complete hydrolysis O-glycosides yield one or more monosaccharides, and a mono or polyhydric alcohol or phenol.

(4) Note. The cyclic sugars referred to in the definitions are normally pyranoses or furanoses.

(5) Note. Glycosides derived from aldoses are referred to as aldosides, and those from ketoses are ketosides.