US PATENT SUBCLASS 544 / 42
.~.~.~.~.~.~.~.~.~ Nitrogen containing hetero ring in the nitrogen containing substituent (e.g., oxazole, etc.)

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544 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1}
1  DF  .~.~ Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) {6}
3  DF  .~.~.~ Six-membered hetero ring consists of oxygen, sulfur, nitrogen and carbon (e.g., oxathiazines, etc.) {7}
14  DF  .~.~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {3}
32  DF  .~.~.~.~.~ Tricyclo ring system having the six-membered hetero ring as one of the cyclos {3}
35  DF  .~.~.~.~.~.~ Phenothiazines (including hydrogenated) {3}
38  DF  .~.~.~.~.~.~.~ Carbon bonded directly to ring nitrogen of phenothiazine ring system {2}
41  DF  .~.~.~.~.~.~.~.~ Nitrogen containing substituent bonded to nitrogen of phenothiazine ring system {1}
42.~.~.~.~.~.~.~.~.~ Nitrogen containing hetero ring in the nitrogen containing substituent (e.g., oxazole, etc.) {3}
43  DF  .~.~.~.~.~.~.~>.~.~.~ Plural hetero rings in the nitrogen containing substituent
44  DF  .~.~.~.~.~.~.~>.~.~.~ Piperazine ring in the nitrogen containing substituent {1}
46  DF  .~.~.~.~.~.~.~>.~.~.~ Chalcogen in the nitrogen containing substituent

DEFINITION

Classification: 544/42

(under subclass 41) Compounds in which the nitrogen containing substituent includes a hetero ring, which hetero ring has at least nitrogen as a ring hetero atom.

(1) Note. Examples of compounds provided for herein are: [figure] [caption](a) [figure] [caption](b)

(2) Note. The substituent may contain a phenothiazine ring as its nitrogen containing hetero ring.