US PATENT SUBCLASS 548 / 217
.~.~.~.~ Polycyclo ring system having the oxazole ring as one of the cyclos


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548 /   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) {4}
100  DF  .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18}
215  DF  .~.~.~ 1,3-oxazoles (including hydrogenated) {6}
217.~.~.~.~ Polycyclo ring system having the oxazole ring as one of the cyclos {6}
218  DF  .~.~.~.~.~> At least three ring hetero atoms in the polycyclo ring system
219  DF  .~.~.~.~.~> Plural polycyclo ring systems having the oxazole ring as one of the cyclos in each of the ring systems {1}
221  DF  .~.~.~.~.~> Chalcogen bonded directly at the 2-position of the oxazole ring
222  DF  .~.~.~.~.~> Nitrogen bonded directly at the 2-position of the oxazole ring
223  DF  .~.~.~.~.~> At least four rings in the polycyclo ring system
224  DF  .~.~.~.~.~> Carbocyclic ring bonded directly at the 2-position of the oxazole ring


DEFINITION

Classification: 548/217

(under subclass 215) Compounds wherein the oxazole ring is cyclo in a polycyclo ring system.

(1) Note. Examples of compounds provided for herein are:

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