Nitrogen attached directly to the five-membered hetero ring by nonionic bonding

Subclass of:

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

548000000 - ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)

548000000 - 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)

548400000 - Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application number	Description	Number of patent applications / Date published
548557000	Nitrogen attached directly to the five-membered hetero ring by nonionic bonding	6
20080255371	Method for improving optical purity of 1-benzyl-3-aminopyrolidine and salt for use therein - The present invention provides a method to improve the optical purity of 1-benzyl-3-aminopyrrolidine having a low optical purity using an inexpensive agent via a simple procedure. The present invention provides a method for improving the optical purity of 1-benzyl-3-aminopyrrolidine including the steps of converting 1-benzyl-3-aminopyrrolidine into an equimolar salt with an optically inactive acid, and recovering the salt as crystals. The present invention also provides a salt of 1-benzyl-3-aminopyrrolidine that is used in the method.	10-16-2008
20090030212	Enantioselective ring-opening of aziridines - A process for the preparation of a nucleophilic addition product of an aziridine and a nucleophile, the process comprising treating the arizidine with the nucleophile in the presence of a biaryl phosphoric acid catalyst	01-29-2009
20090286994	Process for Synthesizing Nitramine Compounds - There is disclosed a process for synthesizing nitrosamine compounds. Specifically, there is disclosed a process for synthesizing N-nitropyrrolidine.	11-19-2009
20100267966	OPTICALLY ACTIVE 3-AMINOPYRROLIDINE SALT, PROCESS FOR PRODUCTION THEREOF, AND METHOD FOR OPTICAL RESOLUTION OF 3-AMINOPYRROLIDINE - An optically active 3-aminopyrrolidine (3AP) salt has a high optical purity which is useful as an intermediate in an industrial production method of an optically active 3AP, an efficient method for producing it, and an efficient industrial method for optical resolution of 3AP. Optical resolution of 3AP is efficiently carried out by reacting racemic 3AP with optically active 2-methoxyphenylacetic acid in the presence of a mineral acid such as hydrochloric acid in an aqueous solvent, followed by separation of the resulting diastereomer salt constituted by 1 mole of optically active 3AP and 2 moles of optically active 2-methoxyphenylacetic acid.	10-21-2010
20150018564	AMIDE COMPOUND OR SALT THEREOF, BIOFILM INHIBITOR, BIOFILM REMOVER AND DISINFECTANT CONTAINING THE SAME - The present invention provides a new amide compound and salt thereof that is capable of inhibiting biofilm formation or removing deposited biofilms. The present invention also provides a biofilm formation inhibitor or a biofilm remover containing the amide compound or salt thereof as an active ingredient.	01-15-2015
20160251309	BICYCLIC COMPOUNDS	09-01-2016