A61K - Cooperative Patent Classification

CPC - A61K - 2013.07 - page 73
phospholipidic or polymeric }
A61K 49/228 . . . { Host-guest complexes, clathrates, chelates }
A61K 51/00
Preparations containing radioactive substances for use in therapy or testing in
vivo
A61K 51/02 . characterised by the carrier, { i.e. characterised by the agent or material covalently
linked or complexing the radioactive nucleus }
A61K 51/025 . . { inorganic Tc complexes or compounds }
A61K 51/04 . . organic compounds
NOTE
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Organic compounds used as carriers
A61K 51/0402 . . . { carboxylic acid carriers, fatty acids ( amino acids A61K 51/0406 ) }
A61K 51/0404 . . . { Lipids, e.g. triglycerides; Polycationic carriers ( fatty acids A61K 51/0402 ;
cholesterol A61K 51/0493 ; polycationic carriers being oligomers, polymers,
dendrimers A61K 47/48169 ) }
A61K 51/0406 . . . . { Amines, polyamines, e.g. spermine, spermidine, amino acids,
(bis)guanidines }
A61K 51/0408 . . . . { Phospholipids ( liposomes encapsulating the radioactive probe or having
no radiolabelled phospholipids A61K 51/1231 ) }
A61K 51/041 . . . { Heterocyclic compounds. }
NOTE
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Under this group, the last place rule is followed
A61K 51/0412 . . . . { having oxygen as the only ring hetero atom, e.g. fungichromin }
A61K 51/0414 . . . . . { having three-membered rings, e.g. oxirane, fumagillin }
A61K 51/0417 . . . . . { having four-membered rings, e.g. taxol }
A61K 51/0419 . . . . . { having five-membered rings with one oxygen as the only ring hetero
atom, e.g. isosorbide }
A61K 51/0421 . . . . . { having six-membered rings with one oxygen as the only ring hetero
atom }
A61K 51/0423 . . . . . { having two or more oxygen atoms in the same ring, e.g. crown ethers,
guanadrel }
A61K 51/0425 . . . . . { compounds containing methylenedioxyphenol groups, e.g. sesamin }
A61K 51/0427 . . . . . { Lactones }
A61K 51/0429 . . . . { having sulfur as a ring hetero atom }
A61K 51/0431 . . . . . { having five-membered rings }
A61K 51/0434 . . . . . { having six-membered rings, e.g. thioxanthenes ( thiotixene A61K
51/0459 ) }
A61K 51/0436 . . . . . { having two or more sulfur atoms in the same ring }
A61K 51/0438 . . . . . { having oxygen in the same ring }
A61K 51/044 . . . . { having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins (
rifampin A61K 51/0459 ) }