Carbon Bonded Directly At The 17 Beta-position Of The Cyclopentanohydrophenanthrene Ring System Is A Member Of An Acyclic Chain Of Six Or More Uninterrupted Carbons (e.g., Sterols, Etc.) Patents (Class 552/540)
- Processes of isolating, purifying or recovering from animal, vegetable or fungal sources (e.g., wool fat or grease, lanolin, fish oils, animal tissue, soybean oil, tall oil or pitch, wood products, sugar cane, soap stocks, yeast, molds, etc.) (Class 552/545)
- Halogen or oxygen bonded directly to the acyclic carbon chain at the 17 beta-position (e.g., 25-hydroxy cholesterols, etc.) (Class 552/546)
- Unsaturation between the 7- and 8-positions (e.g., ergosterols, 7 dehydrocholesterols, provitamin D, etc.) (Class 552/547)