Polycyclo ring system having the hetero ring as one of the cyclos

Subclass of:

549 - Organic compounds -- part of the class 532-570 series

549000000 - ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)

549000000 - 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)

549200000 - Oxygen containing hetero ring (e.g., dioxirane, etc.)

549429000 - The hetero ring is five-membered

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application number	Description	Number of patent applications / Date published
549462000	Bicyclo ring system having the hetero ring as one of the cyclos	121
549458000	Tricyclo ring system having the hetero ring as one of the cyclos	30
549457000	Tetracyclo ring system having the hetero ring as one of the cyclos	6

Entries
Document	Title	Date
20100041904	ANTIOXIDANT INFLAMMATION MODULATORS: C-17 HOMOLOGATED OLEANOLIC ACID DERIVATIVES - This invention provides, but is not limited to, novel oleanolic acid derivatives having the formula:	02-18-2010