Six-membered hetero ring consists of oxygen, sulfur, nitrogen and carbon (e.g., oxathiazines, etc.)

Subclass of:

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

544000000 - ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)

544000000 - 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)

544001000 - Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application number	Description	Number of patent applications / Date published
544002000	Six-membered hetero ring consists of oxygen, sulfur, nitrogen and carbon (e.g., oxathiazines, etc.)	6
20090318685	METHOD FOR PRODUCING 3,4-DIHYDRO-1,2,3-OXATHIAZIN-4-ONE-2,2-DIOXIDE COMPOUND OR SALT THEREOF - A high quality 3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide compound or a salt thereof is obtained easily and efficiently.	12-24-2009
20090318686	METHOD FOR PRODUCING POTASSIUM SALT OF 3,4-DIHYDRO-1,2,3-OXATHIAZIN-4-ONE-2,2-DIOXIDE COMPOUND - A method for producing a high quality potassium salt of 3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide compound easily and efficiently is provided.	12-24-2009
20100063275	PROCESS FOR PREPARING 6-PHENOXYPYRIMIDIN-4-OL DERIVATIVES IN THE PRESENCE OF A QUINUCLIDINE OR A N-METHYL PYRROLIDINE DERIVATIVES - The present invention relates, inter alia, to a process for preparing a compound of formula (I): using a quinuclidine-based catalyst or an optionally 3-substituted N-methyl pryrrolidine-based catalyst.	03-11-2010
20100249401	Process for the preparation of sterically hindered nitroxyl ethers - The present invention relates to a novel process for the preparation of a sterically hindered nitroxyl ether from the corresponding sterically hindered nitroxyl radical by reacting it with a carbonyl compound and a hydroperoxide. The compounds prepared by this process are effective stabilizers for polymers against harmful effects of light, oxygen and/or heat, as flame-retardants for polymers and as polymerization regulators.	09-30-2010
20120041194	NITROGEN AND SULFUR-CONTAINING HETROCYCLE DERIVATIVES - The present invention provides nitrogen and sulfur-containing heterocycle compounds to be used as scaffolds and, in particular, nitrogen and sulfur-containing heterocycle compounds having a thiomorpholine core. The compounds herein described may be useful in treating diseases such as diabetes, obesity, cancer, cardiovascular, Alzheimer's, inflammatory, antidepressant, rheumatoid arthritis, multiple sclerosis, allergic rhinitis, asthma as well as viral and bacterial infections. The compounds herein described may also be useful in treating CNS disorders such as but not limited to Schizophrenia, Alzheimer's disease (AD).	02-16-2012
20130331565	Process for Producing Acesulfame Potassium - In one embodiment, the invention relates to processes for producing acesulfame potassium. In one embodiment, the process comprises the step of reacting a first reaction mixture to form an amidosulfamic acid salt such as a trialkyl ammonium amidosulfamic acid salt. The first reaction mixture comprises sulfamic acid, an amine, and smaller amounts, if any, acetic acid, e.g., less than 1 wt % (10000 wppm). In terms of ranges, the first reaction mixture may comprise from 1 wppm to 1 wt % acetic acid. The process further comprises the step of reacting the amidosulfamic acid salt with diketene to form an acetoacetamide salt. In preferred embodiments, the amidosulfamic acid salt formation reaction is conducted at pH levels from 5.5 to 7.0. The process further comprises the step of deriving the acesulfame-K from the acetoacetamide salt.	12-12-2013