| 548 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | 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} |
| 146 | DF | .~.~.~ 1,3-thiazoles (including hydrogenated) {7} |
| 148 | DF | .~.~.~.~ Polycyclo ring system having the thiazole ring as one of the cyclos {3} |
| 152 |  | .~.~.~.~.~ Bicyclo ring system having the thiazole ring as one of the cyclos {8} |
| 153 | DF | .~.~.~.~.~.~> At least three ring hetero atoms in the bicyclo ring system {1} |
| 156 | DF | .~.~.~.~.~.~> Plural benzothiazoles (including hydrogenated) {1} |
| 159 | DF | .~.~.~.~.~.~> Additional polycyclo heterocyclic ring system containing |
| 160 | DF | .~.~.~.~.~.~> Polycyclo-carbocyclic ring system having at least three cyclos |
| 161 | DF | .~.~.~.~.~.~> Nitrogen attached directly to the thiazole ring by nonionic bonding {3} |
| 165 | DF | .~.~.~.~.~.~> Chalcogen bonded directly to ring carbon of the thiazole ring {5} |
| 178 | DF | .~.~.~.~.~.~> Chalcogen or nitrogen attached directly to the other cyclo of the bicyclo ring system by nonionic bonding |
| 179 | DF | .~.~.~.~.~.~> Chalcogen attached indirectly to the bicyclo ring system by nonionic bonding {1} |