Class / Patent application number | Description | Number of patent applications / Date published |
548237000 | One double bond between the ring members of the oxazole ring | 13 |
20080207913 | Poly(ethylene glycol) containing chemically disparate endgroups - The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof. | 08-28-2008 |
20080319200 | PROCESS FOR PREPARING OXAZOLINE-PROTECTED AMINODIOL COMPOUNDS USEFUL AS INTERMEDIATES TO FLORFENICOL - A method of preparing oxazoline-protected aminodiol compounds is disclosed. These compounds are useful intermediates in processes for preparing Florfenicol and related compounds. | 12-25-2008 |
20090043104 | 2,2',6,6' - TETRAOXAZOLINYL BIPHENYL LIGAND AND METHOD FOR PREPARING THE SAME - The present invention relates to a method for preparing 2,2′,6,6′-tetraoxazolinyl biphenyl ligand in chemical industry field. In the present invention, compound (III) is reacted with an activator that can activate the hydroxyl group selected from the group consisting of alkyl halosulfonium compound, aryl halosulfonium compound, phosphoryl chloride, phosphorus pentachloride, thionyl chloride and triphenyl phosphine, in the presence of alkali(s), to give the target product (IV), 2,2′,6,6′-tetraoxazolinyl biphenyl ligand. The ligand of the present invention can be used in various asymmetric reactions catalyzed by metals, with high reactivity and stereoselectivity, and thus represents a good application outlook. The 2,2′,6,6′-tetraoxazolinyl biphenyl ligand has the formula of: | 02-12-2009 |
20090156829 | 5,5'- POSITION LINKED 1,1'- BIPHENYL AXIAL CHIRAL LIGAND AND METHOD FOR PREPARING THE SAME - The present invention relates to a 5,5′-position linked 1,1′-biphenyl axis chiral ligand in chemical industry field. The present invention incorporates both the central chirality of oxazoline and the axial chirality of diphenyls. Such ligand can be used in various asymmetric reactions catalyzed by metal with high reactivity and stereoselectivity, and thus represents a good application outlook. | 06-18-2009 |
20100217008 | PROCESS FOR THE PREPARATION OF VALSARTAN AND INTERMEDIATE PRODUCTS - The present invention relates to a new method for the production of valsartan, a valine derivative having the chemical N name is (S)—N-(1-carboxy-2-methylprop-1-yl)-N-pentanoyl-N-[2′-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]amine, and pharmacologically acceptable salts thereof. Furthermore the invention relates to new intermediate compounds which are suitable for the production of valsartan and new methods for the production of intermediate compounds which are suitable for the production of valsartan. | 08-26-2010 |
20140364618 | Method of Making Indeno-Fused Naphthol Materials - The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, represented by the following general Formula V, | 12-11-2014 |
548238000 | 2-position substituent contains nitrogen, other than as nitro or nitroso | 2 |
20120226050 | POLY(ETHYLENE GLYCOL) CONTAINING CHEMICALLY DISPARATE ENDGROUPS - The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof. | 09-06-2012 |
20140012010 | METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUND OR SALT THEREOF - Provided is a process for producing an optically active compound represented by Formula (3): | 01-09-2014 |
548239000 | 2-position is unsubstituted or hydrocarbyl substituted only | 5 |
20100048909 | Process for production of optically active-3-amino-2-hydroxypropionic cyclopropylamide derivatives and salts thereof - An objective of the present application is to provide an industrially practicable method for producing an optically-active 3-amino-2-hydroxypropionic cyclopropylamide derivative or salt thereof from an inexpensive easily-available starting material. The derivative or salt thereof is useful as an intermediate for a medicine. It is also intended by the present application to provide a useful intermediate of the derivative. The objective is attained by the following method. First, an easily-available 2-halo-3-oxopropionic acid derivative is asymmetrically reduced, and then epoxidated to produce an optically-active epoxycarboxylic acid derivative. Next, the derivative is converted into an optically-active epoxyamide derivative by reaction with cyclopropylamine, and then reacted with a nitrile to obtain an optically-active oxazolinamide derivative. Subsequently, selective acid solvolysis of the oxazoline skeleton gives the optically-active 3-amino-2-hydroxypropionic cyclopropylamide derivative or salt thereof. | 02-25-2010 |
20100305333 | LIPID CONJUGATED CYCLIC CARBONATE DERIVATIVES, THEIR SYNTHESIS, AND USES - The present disclosure provides processes for the preparation of lipid conjugated cyclic carbonate derivatives. More specifically, the present disclosure is based on the finding that reacting lipids, such as, ceramides, with N,N′-disuccinimidyl derivative, resulted in the formation of, isolatable, substituted cyclic [1,3]-dioxan-2-one and [1,3]-dioxan-2-thione compounds. These isolatable cyclic substituted compounds and derivatives thereof may be used for various applications, such as in vaccination. | 12-02-2010 |
20110166359 | PROCESS FOR PREPARING OXAZOLINE-PROTECTED AMINODIOL COMPOUNDS USEFUL AS INTERMEDIATES TO FLORFENICOL - Processes for preparing oxazoline compounds are disclosed. These oxazoline compounds are useful intermediates in the preparation of Florfenicol and related compounds. | 07-07-2011 |
20140012011 | COMPOUNDS FOR PREPARING IMMUNOLOGICAL ADJUVANT - The present invention provides methods for preparing TLR-4 receptor agonist E6020: | 01-09-2014 |
20140323739 | COMPOUNDS FOR PREPARING IMMUNOLOGICAL ADJUVANT - The present invention provides methods for preparing TLR-4 receptor agonist E6020: | 10-30-2014 |