US PATENT SUBCLASS 435 / 75
.~.~.~ 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.)

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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  DF  .~.~ Preparing O-glycoside (e.g., glucosides, etc.) {4}
75.~.~.~ 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}
76  DF  .~.~.~.~> The hetero ring has eight or more ring members and only oxygen as ring hetero atoms (e.g., erythromycin, spiramycin, nystatin, etc.)

DEFINITION

Classification: 435/75

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.):

(under subclass 74) Processes wherein a nonsaccharide heterocyclic ring or a fused or bridged- ring system which contains a nonsaccharide heterocyclic ring is attached to an oxygen of the saccharide radical, e.g., [figure]