ClassID:

93401

C07C309/77 - CPC Classification

Classification description:

Sulfonic acids; Halides, esters, or anhydrides thereof; Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing carboxyl groups bound to the carbon skeleton

Recent Application in this class:
#1
20250314964
2025-10-09

ONIUM SALT MONOMER, POLYMER, CHEMICALLY AMPLIFIED RESIST COMPOSITION, AND PATTERN FORMING PROCESS

#2
20250283138
2025-09-11

BIOREACTIVE COMPOUNDS AND METHODS OF USE THEREOF

#3
20240051996
2024-02-15

Non-chromatographic purification of macrocyclic peptides by a resin catch and release

#4
20210079046
2021-03-18

Non-chromatographic purification of macrocyclic peptides by a resin catch and release

#5
20200009273
2020-01-09

RADIOACTIVE FLUORINE-LABELED PRECURSOR COMPOUND, AND METHOD FOR PRODUCING RADIOACTIVE FLUORINE-LABELED COMPOUND USING SAME

#6
20190010111
2019-01-10

Preparation of phenyl compounds

#7
20180044459
2018-02-15

Non-ionic aryl ketone based polymeric photo-acid generators

#8
20150105581
2015-04-16

Cyclopentylacrylamide derivative

#9
20140315713
2014-10-23

Phenolsulfonic acid aryl ester, developing agent, and heat-sensitive recording material

#10
20140243532
2014-08-28

Precursors of glutamate derivatives

#11
20130211120
2013-08-15

Use of an acetic acid wash to prepare low-sulfate 5-sulfoisophthalic acid, mono-lithium salt

#12
20130171562
2013-07-04

Actinic-ray- or radiation-sensitive resin composition and method of forming pattern using the composition

#13
20110160211
2011-06-30

Cyclopentylacrylamide derivative

#14
20100063290
2010-03-11

Preparation of 3,4-dihydroisoquinolines from an acid and an amine

#15
20090247761
2009-10-01

Preparation of 3,4-dihydroisoquinolines in the synthesis of morphinans

#16
20090247760
2009-10-01

Preparation of amides from an acid and amine for intermediates in the synthesis of morphinans

#17
20080221347
2008-09-11

Nucleophile assisting leaving groups

#18
20070111125
2007-05-17

Charge controlling agent and toner

#19
20070015734
2007-01-18

Substituted picolinamides as MAO-B inhibitors useful for treating obesity

#20
20050154056
2005-07-14

Inhibitors of HCV NS5B polymerase