AU2017268424B2 - Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling - Google Patents

Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling Download PDF

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AU2017268424B2
AU2017268424B2 AU2017268424A AU2017268424A AU2017268424B2 AU 2017268424 B2 AU2017268424 B2 AU 2017268424B2 AU 2017268424 A AU2017268424 A AU 2017268424A AU 2017268424 A AU2017268424 A AU 2017268424A AU 2017268424 B2 AU2017268424 B2 AU 2017268424B2
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chloro
aryl
mmol
methyl
alkyl
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AU2017268424A1 (en
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Robert S. BAUMAN
Reetam Chakrabarti
Shawn D. Feist
Jason S. FISK
Ronald B. Leng
Xiaoyong Li
Mark MUEHLFELD
Mark A. Nitz
Jossian Oppenheimer
James W. Ringer
Siyu TU
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Corteva Agriscience LLC
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Corteva Agriscience LLC
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391Physical properties of the active metal ingredient
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/79Acids; Esters
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/90Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having more than three double bonds between ring members or between ring members and non-ring members
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32One oxygen, sulfur or nitrogen atom
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/40Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
    • B01J2231/42Catalytic cross-coupling, i.e. connection of previously not connected C-atoms or C- and X-atoms without rearrangement
    • B01J2231/4205C-C cross-coupling, e.g. metal catalyzed or Friedel-Crafts type
    • B01J2231/4211Suzuki-type, i.e. RY + R'B(OR)2, in which R, R' are optionally substituted alkyl, alkenyl, aryl, acyl and Y is the leaving group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82Metals of the platinum group
    • B01J2531/824Palladium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/04Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pyridine Compounds (AREA)
AU2017268424A 2016-05-19 2017-05-19 Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling Ceased AU2017268424B2 (en)

Priority Applications (1)

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AU2021203233A AU2021203233A1 (en) 2016-05-19 2021-05-20 Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct Suzuki coupling

Applications Claiming Priority (5)

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US201662338562P 2016-05-19 2016-05-19
US62/338562 2016-05-19
US201662416811P 2016-11-03 2016-11-03
US62/416811 2016-11-03
PCT/US2017/033489 WO2017201377A1 (en) 2016-05-19 2017-05-19 Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling

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AU2017268424B2 true AU2017268424B2 (en) 2021-07-15

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AU2021203233A Abandoned AU2021203233A1 (en) 2016-05-19 2021-05-20 Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct Suzuki coupling

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US (3) US10087164B2 (enExample)
EP (1) EP3458442B1 (enExample)
JP (2) JP7113762B2 (enExample)
KR (1) KR20190007048A (enExample)
CN (1) CN109415319A (enExample)
AU (2) AU2017268424B2 (enExample)
BR (1) BR112018073348B8 (enExample)
CA (1) CA3023935A1 (enExample)
IL (1) IL263075A (enExample)
MX (1) MX2018014174A (enExample)
RU (1) RU2018144344A (enExample)
WO (1) WO2017201377A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112018073348B8 (pt) * 2016-05-19 2023-05-16 Dow Agrosciences Llc Métodos para preparar 6-aril-4-aminopicolinatos e 2-aril-6-aminopirimidina-4-carboxilatos por acoplamento direto de suzuki
CN113015721B (zh) * 2018-09-19 2025-07-25 科迪华农业科技有限责任公司 毒莠定卤素类似物的制备
WO2020133403A1 (zh) * 2018-12-29 2020-07-02 青岛清原化合物有限公司 取代的嘧啶芳酯衍生物及其制备方法、除草组合物和应用
US20230357155A1 (en) * 2020-03-18 2023-11-09 Corteva Agriscience Llc Improved synthesis of 4-amino-6-(heterocyclic)picolinates
US20230174490A1 (en) 2020-03-18 2023-06-08 Corteva Agriscience Llc Improved synthesis of 6-aryl-4-aminopicolinates
US20230167061A1 (en) * 2020-05-11 2023-06-01 Corteva Agriscience Llc Preparation of compounds having pesticidal activity
WO2023248174A1 (en) * 2022-06-22 2023-12-28 Hetero Labs Limited An improved process for preparation of voxelotor
CN115819334B (zh) * 2022-06-28 2025-03-18 安徽众邦生物工程有限公司 一种氯氟吡啶酯的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120190549A1 (en) * 2011-01-25 2012-07-26 Dow Agrosciences Llc 6-amino-2-substituted-5-vinylsilylpyrimidine-4-carboxylic acids and esters and 4-amino-6-substituted-3-vinylsilylpyridine-2-carboxylic acids and esters as herbicides
US20140031556A1 (en) * 2012-07-24 2014-01-30 Dow Agrosciences Llc Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR037228A1 (es) * 2001-07-30 2004-11-03 Dow Agrosciences Llc Compuestos del acido 6-(aril o heteroaril)-4-aminopicolinico, composicion herbicida que los comprende y metodo para controlar vegetacion no deseada
TWI396505B (zh) * 2006-01-13 2013-05-21 Dow Agrosciences Llc 2-(聚-經取代芳基)-6-胺-5-鹵-4-嘧啶羧酸及其作為除草劑之用途
BRPI0815349A2 (pt) * 2007-08-13 2015-02-10 Dow Agrosciences Llc 6-amino-5-cloro-4-pirimidinacarboxilatos substituídos com 2-(2-fluorofeni-la) e seu uso como herbicidas
EP2181098B1 (en) * 2007-08-30 2011-03-02 Dow AgroSciences LLC 2-(substituted phenyl)-6-amino-5-alkoxy, thioalkoxy and aminoalkyl-4-pyrimidinecarboxylates and their use as herbicides
CN101883759B (zh) 2007-10-02 2014-05-21 陶氏益农公司 2-取代的-6-氨基-5-烷基、烯基或炔基-嘧啶-4-羧酸和6-取代的-4-氨基-3-烷基、烯基或炔基吡啶-2-羧酸以及它们作为除草剂的用途
JP5314126B2 (ja) * 2008-04-18 2013-10-16 ダウ アグロサイエンシィズ エルエルシー 2−(置換フェニル)−6−ヒドロキシ又はアルコキシ−5−置換−4−ピリミジンカルボキシラート及び除草剤としてのそれらの使用
GB0808664D0 (en) * 2008-05-13 2008-06-18 Syngenta Ltd Chemical compounds
GB0902474D0 (en) * 2009-02-13 2009-04-01 Syngenta Ltd Chemical compounds
GB0907625D0 (en) * 2009-05-01 2009-06-10 Syngenta Ltd Method of controlling undesired vegetation
TWI529163B (zh) * 2011-01-25 2016-04-11 陶氏農業科學公司 用於製備4-胺基-5-氟-3-鹵素-6-(經取代之)吡啶甲酸酯的方法
TWI520943B (zh) * 2011-01-25 2016-02-11 陶氏農業科學公司 用於製備4-胺基-3-氯-5-氟-6-(經取代的)吡啶甲酸酯的方法(二)
TWI592401B (zh) * 2011-01-25 2017-07-21 陶氏農業科學公司 用於製備4-胺基-3-氯-5-氟-6-(經取代的)吡啶甲酸酯的方法(一)
MX370455B (es) * 2011-07-27 2019-12-13 Bayer Ip Gmbh Ácidos picolínicos y piridimin-4-carboxílicos sustituidos, procedimiento para su preparación y su uso como herbicidas y reguladores del crecimiento de plantas.
US8754110B2 (en) * 2011-12-30 2014-06-17 Dow Agrosciences, Llc. Methods of producing methyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylate
KR102065950B1 (ko) * 2011-12-30 2020-01-14 다우 아그로사이언시즈 엘엘씨 (4-클로로-2-플루오로-3-치환된-페닐) 보로네이트의 단리 방법 및 그의 사용 방법
CN102875456B (zh) * 2012-10-23 2013-12-11 西华大学 3,6-二氯-2-氨基吡啶的化学合成方法
US20140170058A1 (en) * 2012-12-13 2014-06-19 Dow Agrosciences Llc Process for the removal of palladium from 4-amino-3-halo-5-fluoro-6-(aryl) pyridine-2-carboxylates and 4-amino-3-halo-6-(aryl)pyridine-2-carboxylates
ES2811084T3 (es) 2013-03-15 2021-03-10 Dow Agrosciences Llc 4-Amino-6-(heterociclil)picolinatos y 6-amino-2-(heterociclil)pirimidina-4-carbililatos y su uso como herbicidas
US9637505B2 (en) 2013-03-15 2017-05-02 Dow Agrosciences Llc 4-amino-6-(heterocyclic)picolinates and 6-amino-2-(heterocyclic)pyrimidine-4-carboxylates and their use as herbicides
RU2672584C2 (ru) * 2013-03-15 2018-11-16 ДАУ АГРОСАЙЕНСИЗ ЭлЭлСи 4-амино-6-(гетероциклил)пиколинаты и 6-амино-2-(гетероциклил)пиримидин-4-карбоксилаты и их применение в качестве гербицидов
HUE041698T2 (hu) * 2013-03-15 2019-05-28 Dow Agrosciences Llc Új 4-aminopiridin- és 6-aminopririmidin-karboxilátok mint herbicidek
US9113629B2 (en) * 2013-03-15 2015-08-25 Dow Agrosciences Llc 4-amino-6-(4-substituted-phenyl)-picolinates and 6-amino-2-(4-substituted-phenyl)-pyrimidine-4-carboxylates and their use as herbicides
BR112018073348B8 (pt) * 2016-05-19 2023-05-16 Dow Agrosciences Llc Métodos para preparar 6-aril-4-aminopicolinatos e 2-aril-6-aminopirimidina-4-carboxilatos por acoplamento direto de suzuki

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120190549A1 (en) * 2011-01-25 2012-07-26 Dow Agrosciences Llc 6-amino-2-substituted-5-vinylsilylpyrimidine-4-carboxylic acids and esters and 4-amino-6-substituted-3-vinylsilylpyridine-2-carboxylic acids and esters as herbicides
US20140031556A1 (en) * 2012-07-24 2014-01-30 Dow Agrosciences Llc Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates

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EP3458442A1 (en) 2019-03-27
IL263075A (en) 2018-12-31
BR112018073348B1 (pt) 2023-01-24
US10570114B2 (en) 2020-02-25
AU2017268424A1 (en) 2018-11-22
US20180334444A1 (en) 2018-11-22
JP7113762B2 (ja) 2022-08-05
US20180334445A1 (en) 2018-11-22
RU2018144344A (ru) 2020-06-19
JP2019516708A (ja) 2019-06-20
WO2017201377A1 (en) 2017-11-23
CA3023935A1 (en) 2017-11-23
US10544121B2 (en) 2020-01-28
BR112018073348A2 (pt) 2019-03-06
CN109415319A (zh) 2019-03-01
EP3458442B1 (en) 2022-12-28
US10087164B2 (en) 2018-10-02
RU2018144344A3 (enExample) 2021-02-18
AU2021203233A1 (en) 2021-06-10
MX2018014174A (es) 2019-03-14
JP2022141912A (ja) 2022-09-29
BR112018073348B8 (pt) 2023-05-16
NZ747932A (en) 2022-03-25
KR20190007048A (ko) 2019-01-21
EP3458442A4 (en) 2020-04-22
US20170334878A1 (en) 2017-11-23

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