ClassID:

93144

C07C269/08 - CPC Classification

Classification description:

Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups , the nitrogen atom not being part of nitro or nitroso groups Separation; Purification; Stabilisation; Use of additives

Recent Application in this class:
#1
20260132101
2026-05-14

METHOD FOR RESOLVING PHENYLALANINE DERIVATIVE, AND INTERMEDIATE

#2
20250368680
2025-12-04

METHOD FOR PRODUCING SALT OF AMINO ACID OR SALT OF PEPTIDE COMPOUND OR SOLVATE OF EITHER ONE OF SAID SALTS COMPRISING LITHIUM SALT PRECIPITATION STEP

#3
20250340509
2025-11-06

COMPOSITIONS COMPRISING (R)-2-AMINO-3-PHENYLPROPYL CARBAMATE AND USES THEREOF

#4
20250320178
2025-10-16

AMPHETAMINE CARBAMATE COMPOUNDS AND METHODS

#5
20250059143
2025-02-20

CAMPTOTHECIN DERIVATIVE INTERMEDIATE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

#6
20240409492
2024-12-12

METHOD FOR CLEAVING (POLY)URETHANES

#7
20240327337
2024-10-03

AMPHETAMINE CARBAMATE COMPOUNDS AND METHODS

#8
20230348368
2023-11-02

Process for preparing {6-[(diethylamino)methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl]carbamate having high purity

#9
20230286909
2023-09-14

Amphetamine carbamate compounds and methods

#10
20230242476
2023-08-03

A PROCESS FOR THE PURIFICATION OF (R)-2-AMINO-3-PHENYLPROPYL CARBAMATE

#11
20230183172
2023-06-15

Compositions comprising (R)-2-amino-3-phenylpropyl carbamate and uses thereof

#12
20220213029
2022-07-07

Amphetamine carbamate compounds and methods

#13
20220177421
2022-06-09

Process for preparing {6-[(diethylamino)methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl]carbamate having high purity

#14
20220112351
2022-04-14

CHEMOLYTIC UPGRADING OF LOW-VALUE MACROMOLECULE FEEDSTOCKS TO HIGHER-VALUE FUELS AND CHEMICALS

#15
20220064109
2022-03-03

High pressure strippers for use in urea plants

#16
20210221768
2021-07-22

CRYSTALLINE FORMS OF 1-(ACYLOXY)-ALKYL CARBAMATE DRUG CONJUGATES OF NAPROXEN AND PREGABALIN

#17
20210053912
2021-02-25

Compositions comprising (R)-2-amino-3-phenylpropyl carbamate and uses thereof

#18
20210017100
2021-01-21

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

#19
20200223971
2020-07-16

Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents

#20
20200148610
2020-05-14

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

#21
20200115329
2020-04-16

DIFLUOROALKYLCYCLOPROPYL AMINO ACIDS AND ESTERS, AND SYNTHESES THEREOF

#22
20190194126
2019-06-27

Solvate form of (R)-2-amino-3-phenylpropyl carbamate

#23
20190185421
2019-06-20

Method for producing active ingredient for rivastigmine free base transdermal patch and rivastigmine free base transdermal patch comprising the same

#24
20190161435
2019-05-30

Process for preparing acylated amphetamine derivatives

#25
20190099747
2019-04-04

NANO-TO-NANO FE/PPM Pd CATALYSIS OF CROSS-COUPLING REACTIONS IN WATER

#26
20190009268
2019-01-10

Process for stripping carbamate from ion exchange resin

#27
20180265459
2018-09-20

Disubstituted amino acids and methods of preparation and use thereof

#28
20180217113
2018-08-02

Method for analyzing enantiomer

#29
20180194721
2018-07-12

Difluoroalkylcyclopropyl amino acids and esters, and syntheses thereof

#30
20170217850
2017-08-03

ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE

#31
20170066714
2017-03-09

Disubstituted amino acids and methods of preparation and use thereof

#32
20160339418
2016-11-24

Nano-to-nano Fe/ppm Pd catalysis of cross-coupling reactions in water

#33
20160200727
2016-07-14

Process for the preparation of key intermediates of omarigliptin

#34
20160090352
2016-03-31

Process for the purification of melphalan

#35
20160046565
2016-02-18

Xylylene dicarbamate, method for producing xylylene diisocyanate, xylylene diisocyanate, and method for reserving xylylene dicarbamate

#36
20150259279
2015-09-17

Isocyanate production process using composition containing carbamic acid ester and aromatic hydroxy compound, and composition for transfer and storage of carbamic acid ester

#37
20150087700
2015-03-26

Nitrogen-containing inorganic carrier materials

#38
20140350285
2014-11-27

NOVEL POLYMORPHS OF N-[2-AMINO-4-(4-FLUOROBENZYLAMINO)-PHENYL] CARBAMIC ACID ETHYL ESTER AND PROCESSES THEREOF

#39
20140332367
2014-11-13

Method of separation

#40
20140128581
2014-05-08

Disubstituted amino acids and methods of preparation and use thereof

#41
20140107319
2014-04-17

Method for synthesis of peptide using a carrier

#42
20130267730
2013-10-10

Purification of precursor compound by crystallisation

#43
20130245307
2013-09-19

Preparation of pet precursor

#44
20130197240
2013-08-01

Process for preparing aminoadamantyl carbamate derivatives

#45
20130165657
2013-06-27

Process for preparation of optically active diamine derivative salt

#46
20130102794
2013-04-25

Process for the preparation of nitrogen substituted aminotetralins derivatives

#47
20130041106
2013-02-14

Chemoselective enrichment for compound isolation

#48
20120178804
2012-07-12

NITROGEN-CONTAINING INORGANIC CARRIER MATERIALS

#49
20120035369
2012-02-09

Method for producing optically active diamine derivative

#50
20120015443
2012-01-19

Chiral selectors and stationary phases for separating enantiomer mixtures

#51
20110230666
2011-09-22

PROCESS FOR THE SEPARATION OF ENANTIOMERICALLY PURE COMPOUNDS

#52
20100305333
2010-12-02

Lipid conjugated cyclic carbonate derivatives, their synthesis, and uses

#53
20100160665
2010-06-24

Processes for the preparation and purification of gabapentin enacarbil

#54
20100113823
2010-05-06

Isocyanate production process using composition containing carbamic acid ester and aromatic hydroxy compound, and composition for transfer and storage of carbamic acid ester

#55
20100029904
2010-02-04

Carrier for separation, method for separation of compound, and method for synthesis of peptide using the carrier

#56
20090229352
2009-09-17

Chiral selectors and stationary phases for separating enantiomer mixtures

#57
20070093549
2007-04-26

Methods for preparation of ladostigil tartrate crystalline form A1

#58
20050288486
2005-12-29

Process for the synthesis of intermediates useful for the synthesis of tubulin inhibitors

#59
20050192441
2005-09-01

Methods for the preparation of stereoisomerically enriched amines

#60
18403406
2024-07-16

2-OXO-2-({2-[(phenylcarbamoyl)oxy]ethyl} amino)ethyl phenylcarbamate as an eco-friendly insecticidal agent against spodoptera littoralis (boisd.)