CA2929084C - Macrocyclization reactions and intermediates and other fragments useful in the synthesis of analogs of halichondrin b - Google Patents

Macrocyclization reactions and intermediates and other fragments useful in the synthesis of analogs of halichondrin b Download PDF

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Publication number
CA2929084C
CA2929084C CA2929084A CA2929084A CA2929084C CA 2929084 C CA2929084 C CA 2929084C CA 2929084 A CA2929084 A CA 2929084A CA 2929084 A CA2929084 A CA 2929084A CA 2929084 C CA2929084 C CA 2929084C
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formula
compound
combine
protecting group
hydroxyl protecting
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French (fr)
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CA2929084A1 (en
Inventor
Francis G. Fang
Dae-Shik Kim
Hyeong-Wook Choi
Charles E. Chase
Jaemoon Lee
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Eisai R&D Management Co Ltd
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Eisai R&D Management Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/22Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains four or more hetero rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/28Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D407/00Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
    • C07D407/02Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
    • C07D407/06Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D407/00Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
    • C07D407/14Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing three or more hetero rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/12Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains three hetero rings
    • C07D493/14Ortho-condensed systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/18Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804Compounds having Si-O-C linkages
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6558Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system
    • C07F9/65586Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system at least one of the hetero rings does not contain nitrogen as ring hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6561Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Saccharide Compounds (AREA)
  • Steroid Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
CA2929084A 2013-11-04 2014-11-04 Macrocyclization reactions and intermediates and other fragments useful in the synthesis of analogs of halichondrin b Active CA2929084C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361899697P 2013-11-04 2013-11-04
US61/899,697 2013-11-04
PCT/US2014/063960 WO2015066729A1 (en) 2013-11-04 2014-11-04 Macrocyclization reactions and intermediates useful in the synthesis of analogs of halichondrin b

Publications (2)

Publication Number Publication Date
CA2929084A1 CA2929084A1 (en) 2015-05-07
CA2929084C true CA2929084C (en) 2022-01-11

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CA2929084A Active CA2929084C (en) 2013-11-04 2014-11-04 Macrocyclization reactions and intermediates and other fragments useful in the synthesis of analogs of halichondrin b

Country Status (12)

Country Link
US (5) US9783549B2 (https=)
EP (2) EP3689881B1 (https=)
JP (3) JP6625533B2 (https=)
CN (3) CN105683198B (https=)
BR (1) BR112016009452B1 (https=)
CA (1) CA2929084C (https=)
ES (1) ES2787603T3 (https=)
HU (1) HUE049387T2 (https=)
IL (4) IL244694B (https=)
RU (1) RU2710545C2 (https=)
SG (1) SG11201603490TA (https=)
WO (1) WO2015066729A1 (https=)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2522663B1 (en) 2004-06-03 2015-04-01 Eisai R&D Management Co., Ltd. Intermediates for the preparation of halichondrin B
RU2489437C2 (ru) 2007-10-03 2013-08-10 Эйсай Ар Энд Ди Менеджмент Ко., Лтд. Промежуточные соединения и способы синтеза аналогов галихондрина в
CN105801599A (zh) 2008-04-04 2016-07-27 卫材R&D管理有限公司 软海绵素b类似物
WO2011094339A1 (en) 2010-01-26 2011-08-04 Eisai R&D Management Co., Ltd. Furo [3, 2 -b] pyrane derivatives useful in the synthesis of halichondrin b analogs
EP3689881B1 (en) 2013-11-04 2022-01-12 Eisai R&D Management Co., Ltd. Macrocyclization reactions and intermediates useful in the synthesis of analogs of halichondrin b
MX384292B (es) 2013-12-06 2025-03-14 Eisai R&D Man Co Ltd Metodos utiles en la sintesis de analogos de halicondrina b.
US10556910B2 (en) 2014-06-30 2020-02-11 President And Fellows Of Harvard College Synthesis of halichondrin analogs and uses thereof
US10344038B2 (en) 2015-04-30 2019-07-09 President And Fellows Of Harvard College Chromium-mediated coupling and application to the synthesis of halichondrins
KR102743950B1 (ko) 2015-05-07 2024-12-18 에자이 알앤드디 매니지먼트 가부시키가이샤 할리콘드린 마크롤라이드의 합성에 유용한 마크로고리화 반응 및 중간체 및 기타 단편
WO2017064627A2 (en) * 2015-10-14 2017-04-20 Dr. Reddy's Laboratories Limited Process for preparation of eribulin and intermediates thereof
EP3413887B1 (en) * 2016-02-12 2021-04-07 Eisai R&D Management Co., Ltd. Intermediates in the synthesis of eribulin and related methods of synthesis
EP3423105B1 (en) 2016-03-02 2021-05-05 Eisai R&D Management Co., Ltd. Eribulin-based antibody-drug conjugates and methods of use
US11136335B2 (en) * 2016-06-30 2021-10-05 Eisai R&D Management Co., Ltd. Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof
JP6978758B2 (ja) 2016-11-11 2021-12-08 プレジデント アンド フェローズ オブ ハーバード カレッジ パラジウム媒介ケトール化
ES2931533T3 (es) * 2017-04-05 2022-12-30 Harvard College Compuesto macrocíclico y usos del mismo
US9938288B1 (en) 2017-04-05 2018-04-10 President And Fellows Of Harvard College Macrocyclic compound and uses thereof
WO2018217894A1 (en) * 2017-05-24 2018-11-29 Eisai R&D Management Co., Ltd. Fluorine-labelled halichondrin derivatives and related methods of synthesis
HUE061306T2 (hu) 2017-07-06 2023-06-28 Harvard College Halikondrinok szintézise
US11498892B2 (en) 2017-07-06 2022-11-15 President And Fellows Of Harvard College Fe/Cu-mediated ketone synthesis
CN109694379B (zh) * 2017-10-24 2020-09-11 江苏恒瑞医药股份有限公司 用于制备艾日布林的中间体及其制备方法
JP6967811B2 (ja) * 2017-11-09 2021-11-17 ヨンスン ファイン ケミカル カンパニー,リミテッド エリブリンメシル酸塩の製造中間体及びその製造方法
CN111566113B (zh) 2017-11-15 2024-01-09 哈佛大学的校长及成员们 大环化合物及其用途
US11419856B2 (en) 2017-11-20 2022-08-23 Basilea Pharmaceutica International AG Pharmaceutical combinations for use in the treatment of neoplastic diseases
CN109970822B (zh) * 2017-12-27 2023-03-28 上海科胜药物研发有限公司 一种合成埃格列净中间体的制备方法
SG11202005548WA (en) 2018-01-03 2020-07-29 Eisai R&D Man Co Ltd Prins reaction and compounds useful in the synthesis of halichondrin macrolides and analogs thereof
EP3608323B1 (en) * 2018-03-02 2021-11-03 Beijing Tienyi Lufu Pharmatech Co. Ltd. Pyran fused ring compound, preparation method therefor and use thereof
WO2019211877A1 (en) * 2018-05-03 2019-11-07 Cipla Limited Process for the preparation of macrocyclic ketone analogs of halichondrin b
JP2021532102A (ja) * 2018-07-20 2021-11-25 ドクター レディズ ラボラトリーズ リミテッド エリブリンおよびその中間体の調製のための精製プロセス
US11447499B2 (en) * 2019-06-14 2022-09-20 Rk Pharma Inc. Process for the preparation of eribulin mesylate intermediate
CN110684036B (zh) * 2019-11-22 2022-04-12 江苏慧聚药业股份有限公司 一条制备甲磺酸艾日布林的方法
WO2023144733A1 (en) * 2022-01-26 2023-08-03 Simon Fraser University Compounds and processes for the preparation of eribulin
CN119585437A (zh) * 2022-07-29 2025-03-07 上海皓元医药股份有限公司 一种艾日布林中间体的制备方法

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107206A (en) 1974-04-08 1978-08-15 Akzona Incorporated Benzo-bicyclononene- derivatives
SU652180A1 (ru) 1975-12-16 1979-03-15 Краснодарский политехнический институт 1(Фурил-2,)-2-(2-,, формилфурил-5,, ) этилен или его метильное производное как промежуточный продукт дл синтеза фуран-2,5-дикарбоновой кислоты и способ его получени
US5338865A (en) 1992-03-12 1994-08-16 President And Fellows Of Harvard College Synthesis of halichondrin B and norhalichondrin B
US5436238A (en) 1992-03-12 1995-07-25 President And Fellows Of Harvard College Halichondrins and related compounds
GB9206244D0 (en) 1992-03-23 1992-05-06 Pharma Mar Sa Cytotoxic compound from a marine sponge
TW255880B (https=) 1992-09-09 1995-09-01 Hoechst Ag
WO1998009942A1 (en) 1996-09-06 1998-03-12 Eli Lilly And Company Catalytic selective sulfonylation process
US6870058B2 (en) 1996-12-03 2005-03-22 The Trustees Of The University Of Pennsylvania Compounds which mimic the chemical and biological properties of discodermolide
US6214865B1 (en) 1998-06-17 2001-04-10 Eisai Co., Ltd. Macrocyclic analogs and methods of their use and preparation
US6653341B1 (en) 1998-06-17 2003-11-25 Eisai Co., Ltd. Methods and compositions for use in treating cancer
US8097648B2 (en) 1998-06-17 2012-01-17 Eisai R&D Management Co., Ltd. Methods and compositions for use in treating cancer
DE10106647A1 (de) 2001-02-12 2002-08-22 Univ Hannover Ratjadon-Derivate zum Hemmen des Zellwachstums
CA2822994C (en) * 2004-06-03 2016-09-27 Eisai R&D Management Co., Ltd. Intermediates for the preparation of analogs of halichondrin b
EP2522663B1 (en) 2004-06-03 2015-04-01 Eisai R&D Management Co., Ltd. Intermediates for the preparation of halichondrin B
US20060045846A1 (en) * 2004-08-30 2006-03-02 Horstmann Thomas E Reagents and methods for labeling terminal olefins
EP1831697A4 (en) 2004-12-09 2011-01-26 Eisai R&D Man Co Ltd SEARCH FOR TUBULINISOTYPES IN CANCER THERAPY USING HALICHONDRIN B ANALOG
WO2007039342A1 (en) 2005-09-26 2007-04-12 Symrise Gmbh & Co. Kg Intramolecular prins reaction and catalysts suitable therefor
WO2008010776A1 (en) * 2006-07-21 2008-01-24 Agency For Science, Technology And Research Aigialomycin d and derivatives thereof and their use in treating cancer or malaria or a microbial infection
JPWO2009014105A1 (ja) 2007-07-20 2010-10-07 株式会社山田養蜂場本社 新規カルボン酸およびそれを有効成分とする抗うつ用組成物
RU2489437C2 (ru) 2007-10-03 2013-08-10 Эйсай Ар Энд Ди Менеджмент Ко., Лтд. Промежуточные соединения и способы синтеза аналогов галихондрина в
RU2010118063A (ru) 2007-11-16 2011-12-27 ЭЙСАЙ Ар энд Ди МЕНЕДЖМЕНТ КО., ЛТД. (JP) Новое промежуточное соединение для синтеза аналога галихондрина в и новая реакция десульфонилирования, применяемая для получения промежуточного соединения
CN105801599A (zh) 2008-04-04 2016-07-27 卫材R&D管理有限公司 软海绵素b类似物
JP5371091B2 (ja) 2009-01-23 2013-12-18 三菱レイヨン株式会社 モノスルホン酸エステルの製造方法
WO2011094339A1 (en) 2010-01-26 2011-08-04 Eisai R&D Management Co., Ltd. Furo [3, 2 -b] pyrane derivatives useful in the synthesis of halichondrin b analogs
WO2012147900A1 (en) 2011-04-28 2012-11-01 Eisai R&D Management Co., Ltd. Microreactor process for halichondrin b analog synthesis
EP2785687B1 (en) 2011-11-30 2019-02-20 Sandoz AG Process for preparation of (3r)-2,4-di-leaving group-3-methylbut-1-ene
WO2013142999A1 (en) * 2012-03-30 2013-10-03 Alphora Research Inc. Synthetic process for preparation of macrocyclic c1-keto analogs of halichondrin b and intermediates useful therein
CA2916537C (en) 2013-07-03 2021-07-27 Alphora Research Inc. Synthetic process for preparation of macrocyclic c1-keto analogs of halichondrin b and intermediates useful therein including intermediates containing -so2-(p-tolyl) groups
EP3689881B1 (en) * 2013-11-04 2022-01-12 Eisai R&D Management Co., Ltd. Macrocyclization reactions and intermediates useful in the synthesis of analogs of halichondrin b
MX384292B (es) * 2013-12-06 2025-03-14 Eisai R&D Man Co Ltd Metodos utiles en la sintesis de analogos de halicondrina b.
WO2016038624A1 (en) 2014-09-09 2016-03-17 Cipla Limited "process for the preparation of macrocyclic ketone analogs of halichondrin b or pharmaceutically acceptable salts and intermediates thereof"
US10344038B2 (en) * 2015-04-30 2019-07-09 President And Fellows Of Harvard College Chromium-mediated coupling and application to the synthesis of halichondrins
KR102743950B1 (ko) * 2015-05-07 2024-12-18 에자이 알앤드디 매니지먼트 가부시키가이샤 할리콘드린 마크롤라이드의 합성에 유용한 마크로고리화 반응 및 중간체 및 기타 단편
EP3413887B1 (en) 2016-02-12 2021-04-07 Eisai R&D Management Co., Ltd. Intermediates in the synthesis of eribulin and related methods of synthesis
US11136335B2 (en) 2016-06-30 2021-10-05 Eisai R&D Management Co., Ltd. Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof
US20180009825A1 (en) * 2016-07-06 2018-01-11 Apicore Us Llc Methods of making eribulin mesylate
WO2018217894A1 (en) 2017-05-24 2018-11-29 Eisai R&D Management Co., Ltd. Fluorine-labelled halichondrin derivatives and related methods of synthesis
SG11202005548WA (en) 2018-01-03 2020-07-29 Eisai R&D Man Co Ltd Prins reaction and compounds useful in the synthesis of halichondrin macrolides and analogs thereof

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Publication number Publication date
RU2016121648A (ru) 2017-12-08
HUE049387T2 (hu) 2020-09-28
US10611773B2 (en) 2020-04-07
IL288468B (en) 2022-10-01
US20190144463A1 (en) 2019-05-16
US20160264594A1 (en) 2016-09-15
EP3066102A4 (en) 2017-04-26
IL288468B2 (en) 2023-02-01
ES2787603T3 (es) 2020-10-16
JP2020023521A (ja) 2020-02-13
JP6625533B2 (ja) 2019-12-25
CN109942560B (zh) 2022-06-17
SG11201603490TA (en) 2016-05-30
IL275240A (en) 2020-07-30
EP3689881B1 (en) 2022-01-12
US9783549B2 (en) 2017-10-10
WO2015066729A1 (en) 2015-05-07
US20180002342A1 (en) 2018-01-04
RU2016121648A3 (https=) 2018-08-06
JP6909840B2 (ja) 2021-07-28
BR112016009452B1 (pt) 2022-06-07
CN109942560A (zh) 2019-06-28
EP3689881A1 (en) 2020-08-05
IL267936B (en) 2020-06-30
CN105683198A (zh) 2016-06-15
EP3066102B1 (en) 2020-02-26
US10934307B2 (en) 2021-03-02
EP3066102A1 (en) 2016-09-14
JP2020059728A (ja) 2020-04-16
IL244694B (en) 2019-07-31
IL244694A0 (en) 2016-04-21
JP2016536316A (ja) 2016-11-24
IL288468A (en) 2022-01-01
CA2929084A1 (en) 2015-05-07
CN114716453A (zh) 2022-07-08
IL275240B (en) 2022-01-01
RU2710545C2 (ru) 2019-12-27
US20200223864A1 (en) 2020-07-16
BR112016009452A8 (pt) 2020-03-24
US11643418B2 (en) 2023-05-09
JP6889232B2 (ja) 2021-06-18
IL267936A (en) 2019-09-26
US20210188867A1 (en) 2021-06-24
CN105683198B (zh) 2019-03-12
US10221189B2 (en) 2019-03-05

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