KR960703110A - 길항 펩티드의 GnRH 제조를 위해 유용한 구아니디노 또는 변형된 구아니디노기를 함유하는 페닐알라닌 유도체 또는 동족체의 제조 방법(PROCESS FOR THE PREPA-RATION OF PHENYLALANINE DERIVATIVES OR HOMOLOGUES CONTAIN-ING A GUANIDINO OR MODIFIED GUANIDINO GROUP USEFUL FOR THE PREPARATION GnRH OF ANTAGONISTIC PEPTIDES) - Google Patents

길항 펩티드의 GnRH 제조를 위해 유용한 구아니디노 또는 변형된 구아니디노기를 함유하는 페닐알라닌 유도체 또는 동족체의 제조 방법(PROCESS FOR THE PREPA-RATION OF PHENYLALANINE DERIVATIVES OR HOMOLOGUES CONTAIN-ING A GUANIDINO OR MODIFIED GUANIDINO GROUP USEFUL FOR THE PREPARATION GnRH OF ANTAGONISTIC PEPTIDES) Download PDF

Info

Publication number
KR960703110A
KR960703110A KR1019950705738A KR19950705738A KR960703110A KR 960703110 A KR960703110 A KR 960703110A KR 1019950705738 A KR1019950705738 A KR 1019950705738A KR 19950705738 A KR19950705738 A KR 19950705738A KR 960703110 A KR960703110 A KR 960703110A
Authority
KR
South Korea
Prior art keywords
amino acid
amino
guanidino
protecting group
moiety
Prior art date
Application number
KR1019950705738A
Other languages
English (en)
Other versions
KR100308361B1 (ko
Inventor
에이. 호거 카알
이.에프. 리비에르 진
에스. 포터 존
Original Assignee
더글라스 리이 버쉬
더 솔크 인스티튜트 포오 바이오로지칼 스터디이즈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 더글라스 리이 버쉬, 더 솔크 인스티튜트 포오 바이오로지칼 스터디이즈 filed Critical 더글라스 리이 버쉬
Publication of KR960703110A publication Critical patent/KR960703110A/ko
Application granted granted Critical
Publication of KR100308361B1 publication Critical patent/KR100308361B1/ko

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C279/00Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C279/20Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups containing any of the groups, X being a hetero atom, Y being any atom, e.g. acylguanidines
    • C07C279/24Y being a hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C277/00Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C277/08Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C279/00Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C279/28Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of guanidine groups bound to cyano groups, e.g. cyanoguanidines, dicyandiamides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C313/00Sulfinic acids; Sulfenic acids; Halides, esters or anhydrides thereof; Amides of sulfinic or sulfenic acids, i.e. compounds having singly-bound oxygen atoms of sulfinic or sulfenic groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C313/08Sulfenic acids; Derivatives thereof
    • C07C313/18Sulfenamides
    • C07C313/26Compounds containing any of the groups, X being a hetero atom, Y being any atom
    • C07C313/30Y being a hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D249/00Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/081,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C07D249/101,2,4-Triazoles; Hydrogenated 1,2,4-triazoles 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
    • C07D249/14Nitrogen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K1/00General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
    • C07K1/006General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length of peptides containing derivatised side chain amino acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K7/00Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
    • C07K7/02Linear peptides containing at least one abnormal peptide link
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K7/00Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
    • C07K7/04Linear peptides containing only normal peptide links
    • C07K7/23Luteinising hormone-releasing hormone [LHRH]; Related peptides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Analytical Chemistry (AREA)
  • Endocrinology (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

본 발명은 건조 전뇌하수체에 의해 고나도트로핀의 분비물을 억제하거나 촉진하고, 생식선에 의해 스테로이드의 방출을 억제하는 펩티드내로 혼입될 수 있는 인공 아미노산을 제조하는 방법에 관한 것으로 이 방법은, 식(i)를 갖는 α-아미노산을 :(CH2)j-CHNH2COOH(여기서, j는 1, 2, 또는 3) α-아미노산의 각 몰에 대해 적어도 약 2몰의 HNO3를 갖는 진한 질산, 진한 황산, 및 상기 아미노산을 포함하는 반응 혼합물을 형성하고, 약 5℃이하의 온도에서 이 반응 혼합물을 유지시키므로써 니트로화 조건에 적용시켜, 이 니트로화가 4-위치에서 주로 일어나게 하고, 적당한 약제와 상기 4NO2-치환 생성물을 반응시켜 상기 α-아미노산에 아미노-보호기를 첨가시키고, 상기 보호된 아미노산을 처리하여, 상기 치환된 니트로 부분을 수소첨가시키고, 그를 아미노 부분으로 변형시키며, 적합한 용매내에 상기 수소첨가된 아미노산을 용해시키고, 그를 디페닐시아노카르본이미데이트와 반응시켜, 친핵성 부분과 반응성 시아노구아니디노 중간체를 형성하여, 구조식(a) 또는 구조식(b)를 갖는 원하를 인공 아미노산을 생성하는 것으로 구성된다.

Description

길항 펩티드의 GnRH 제조를 위해 유용한 구아니디노 또는 변형된 구아니디노기를 함유하는 페닐알라닌 유도체 또는 동족체의 제조 방법(PROCESS FOR THE PREPARATION OF PHENYLALANINE DERIVATIVES OR HOMOLOGUES CONTAINING A GUANIDINO OR MODIFIED GUANIDINO GROUP USEFUL FOR THE PREPARATION GnRH OF ANTAGONISTIC PEPTIDES)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (13)

  1. 사슬 연장 방법에 의해 펩티드의 합성에 유용한 인공 아미노산을 제조하는 방법으로서, 하기 식을 갖는 α-아미노산을 :(CH2)j-CHNH2COOH(여기서, j는 1, 2, 또는 3) α-아미노산을 각 몰에 대해 적어도 약 2몰의 HNO3를 갖는 진한 질산, 진한 황상, 및 상기 아미노산을 포함하는 반응 혼합물을 형성하고, 약 5℃이하의 온도에서 이 반응 혼합물을 유지시키므로써 니트로화 조건에 적용시켜, 이 니트로화가 4-위치에서 주로 일어나게 하고, 적당한 약제와 상기 4NO2-치환 생성물을 반응시켜 상기 α-아미노산에 아미노-보호기를 첨가시키고, 상기 보호된 아미노산을 처리하여, 상기 치환된 니트로 부분을 수소첨가시키고, 그를 아미노 부분으로 변형시키며 적합한 용매내에 상기 수소첨가된 아미노산을 용해시키고, 그를 디페닐시아노카르본이미데이트와 반응시켜, 친핵성 부분과 반응성 시아노구아니디노 중간체를 형성하여, 원하는 인공 아미노산을 생성하는 것으로 구성되는 방법.
  2. 제1항에 있어서, 진한 질산이 α-아미노산의 몰당 약 2∼약3.5몰 HNO3양으로 상기 니트로화 단계에서 사용되는 방법.
  3. 제2항에 있어서, 상기 진한 황산이 NHO3의 각 당량당 약 2∼약 3당량의 양으로 사용되는 방법.
  4. 제1항에 있어서, 상기 4NO2-치환 생성물이 지방족 우레탄 보호기에 의해 α-아미노기를 보호하는 약제와 반응되는 방법.
  5. 제4항에 있어서, 상기 보호기가 터트-부틸옥시카르보닐(Boc)인 방법.
  6. 제5항에 있어서, 상기 약제가 디-터트-부틸디카르보네이트인 방법.
  7. 제1항에 있어서, 상기 보호된 α-아미노산이 알콜내에 용해되고, 팔라듐/탄소 촉매를 사용하여 수소첨가되는 방법.
  8. 제1항에 있어서, 상기 수소첨가된 화합물이 상기 반응을 위해 디클로메탄 및 N-메틸피롤리딘의 혼합물 내 용해되어 상기 시아노구아니디노 중간체를 생성하는 방법.
  9. 제8항에 있어서, 히드라진 수화물 형태의 히드라진이 상기 중간체가 용해되는 용액에 첨가되는 방법.
  10. 제9항에 있어서, j가 1인 방법.
  11. 제1∼10항중 어느 한 항에 있어서, 상기 중간체가 히드라진과 반응되어, 상기 아미노산의 측쇄가 페닐고리의 4-위치에 부착된 3-아미노, 1,24 트리아졸 부분을 생성하는 방법.
  12. 펩티드 중간체 α-아미노기의 보호를 제거하고, 이것을 아미드 결합을 형성하기 위해 제1항의 방법에 의해 제조된 α-아미노산과 반응시키는 것으로 구성되는, 펩티드의 C-말단으로부터 사슬 연장에 의해 펩티드를 합성하는 방법.
  13. 아미노산이 하기 일반 구조식을 갖는, 제1항의 방법에 의해 제조된 아미노산:
    상기 식에, X1은 α-아미노-보호기이고, j는 1, 2, 또는 3이고, R2는 알킬, 변형된 알킬, 알케닐, 알키닐, 아릴 또는 메틸피리딜이다.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950705738A 1993-06-17 1994-06-13 길항 펩티드의 gnrh 제조를 위해 유용한 구아니디노또는변형된구아니디노기를함유하는페닐알라닌유도체또는동족체의제조방법 KR100308361B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/078965 1993-06-17
US08/078,965 1993-06-17
US08/078,965 US5352796A (en) 1989-10-30 1993-06-17 Amino acids useful in making GnRH analogs
PCT/US1994/006726 WO1995000474A1 (en) 1993-06-17 1994-06-13 PROCESS FOR THE PREPARATION OF PHENYLALANINE DERIVATIVES OR HOMOLOGUES CONTAINING A GUANIDINO OR MODIFIED GUANIDINO GROUP USEFUL FOR THE PREPARATION GnRH OF ANTAGONISTIC PEPTIDES

Publications (2)

Publication Number Publication Date
KR960703110A true KR960703110A (ko) 1996-06-19
KR100308361B1 KR100308361B1 (ko) 2001-11-30

Family

ID=22147289

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950705738A KR100308361B1 (ko) 1993-06-17 1994-06-13 길항 펩티드의 gnrh 제조를 위해 유용한 구아니디노또는변형된구아니디노기를함유하는페닐알라닌유도체또는동족체의제조방법

Country Status (13)

Country Link
US (3) US5352796A (ko)
EP (1) EP0703900B1 (ko)
JP (1) JPH09500110A (ko)
KR (1) KR100308361B1 (ko)
AT (1) ATE176904T1 (ko)
AU (1) AU682702B2 (ko)
CA (1) CA2165469A1 (ko)
DE (1) DE69416676T2 (ko)
IL (1) IL110032A (ko)
NZ (1) NZ267921A (ko)
PH (1) PH31215A (ko)
WO (1) WO1995000474A1 (ko)
ZA (1) ZA944345B (ko)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352796A (en) * 1989-10-30 1994-10-04 The Salk Institute For Biological Studies Amino acids useful in making GnRH analogs
US6469158B1 (en) * 1992-05-14 2002-10-22 Ribozyme Pharmaceuticals, Incorporated Synthesis, deprotection, analysis and purification of RNA and ribozymes
GB9312761D0 (en) * 1993-06-21 1993-08-04 Wellcome Found Amino acid derivatives
US5843901A (en) * 1995-06-07 1998-12-01 Advanced Research & Technology Institute LHRH antagonist peptides
AU7471796A (en) * 1995-10-27 1997-05-15 Merck & Co., Inc. Gnrh/reduced pseudomonas exotoxin conjugates
US5912872A (en) * 1996-09-27 1999-06-15 Digital Optics Corporation Integrated optical apparatus providing separated beams on a detector and associated methods
US5928727A (en) * 1997-06-02 1999-07-27 Lacks Industries, Inc. Method for electroplating elastomer-modified polyphthalamide articles
US5977302A (en) * 1997-11-20 1999-11-02 Ortho-Mcneil Pharmaceutical, Inc. Liquid phase process for the preparation of GnRH peptides
US6218426B1 (en) 1998-03-05 2001-04-17 Agouron Pharmaceuticals, Inc. Non-peptide GnRH agents
US6455499B1 (en) 1999-02-23 2002-09-24 Indiana University Foundation Methods for treating disorders associated with LHRH activity
CA2413418A1 (en) 2000-06-21 2001-12-27 Joseph B. Santella Piperidine amides as modulators of chemokine receptor activity
HUP0303197A3 (en) 2000-07-14 2008-03-28 Allergan Inc Compositions containing alpha-2 adrenergic agonist components
US20040214829A1 (en) * 2000-07-14 2004-10-28 Allergan, Inc. Compositions containing alpha-2-adrenergic agonist components
US8858961B2 (en) * 2000-07-14 2014-10-14 Allergan, Inc. Compositions containing alpha-2-adrenergic agonist components
DK2153819T3 (da) * 2000-07-14 2012-12-03 Allergan Inc Anvendelse af en opløselighedsforbedrende bestanddel i en vandig sammensætning omfattende brimonidintartrat
US20050026924A1 (en) * 2000-07-14 2005-02-03 Allergan, Inc. Compositions containing alpha-2-adrenergic agonist components
US6598784B2 (en) * 2000-12-20 2003-07-29 Meadwestvaco Packaging Syatens, Llc Beverage carton with strap type carrying handle
EP1828109B1 (en) * 2004-11-12 2013-06-05 UCL Business PLC Guanidine derivatives as inhibitors of ddah
CA2677045C (en) 2007-01-31 2016-10-18 Dana-Farber Cancer Institute, Inc. Stabilized p53 peptides and uses thereof
AU2008232709C1 (en) 2007-03-28 2015-01-15 President And Fellows Of Harvard College Stitched polypeptides
SI2603600T1 (sl) 2010-08-13 2019-04-30 Aileron Therapeutics, Inc. Peptidomimetični makrocikli
TWI643868B (zh) 2011-10-18 2018-12-11 艾利倫治療公司 擬肽巨環化合物
KR102112373B1 (ko) 2012-02-15 2020-05-18 에일러론 테라퓨틱스 인코포레이티드 펩티드모방체 마크로사이클
US8987414B2 (en) 2012-02-15 2015-03-24 Aileron Therapeutics, Inc. Triazole-crosslinked and thioether-crosslinked peptidomimetic macrocycles
AU2013337388B2 (en) 2012-11-01 2018-08-02 Aileron Therapeutics, Inc. Disubstituted amino acids and methods of preparation and use thereof
SG11201506885UA (en) 2013-03-21 2015-09-29 Sanofi Aventis Deutschland Synthesis of cyclic imide containing peptide products
AU2014234400B2 (en) 2013-03-21 2017-11-16 Sanofi-Aventis Deutschland Gmbh Synthesis of hydantoin containing peptide products
WO2016049359A1 (en) 2014-09-24 2016-03-31 Aileron Therapeutics, Inc. Peptidomimetic macrocycles and uses thereof
MX2017011834A (es) 2015-03-20 2018-04-11 Aileron Therapeutics Inc Macrociclos peptidomimeticos y usos de los mismos.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK558181A (da) * 1981-01-30 1982-07-31 Smithkline Corp Fremgangsmaade til fremstilling af 3,5-diamino-1,2,4-triazoler
EP0079522B1 (en) * 1981-11-09 1986-05-07 Merck & Co. Inc. N-carboxymethyl(amidino)lysyl-proline antihypertensive agents
US4935491A (en) * 1987-08-24 1990-06-19 Board Of Regents, The University Of Texas System Effective antagonists of the luteinizing hormone releasing hormone which release negligible histamine
US5110904A (en) * 1989-08-07 1992-05-05 Abbott Laboratories Lhrh analogs
US5352796A (en) * 1989-10-30 1994-10-04 The Salk Institute For Biological Studies Amino acids useful in making GnRH analogs
IL101074A (en) * 1991-03-14 1997-09-30 Salk Inst For Biological Studi GnRH ANALOGS AND THEIR PREPARATION

Also Published As

Publication number Publication date
IL110032A (en) 1999-09-22
DE69416676D1 (de) 1999-04-01
ATE176904T1 (de) 1999-03-15
AU682702B2 (en) 1997-10-16
PH31215A (en) 1998-05-05
US5565574A (en) 1996-10-15
EP0703900B1 (en) 1999-02-24
WO1995000474A1 (en) 1995-01-05
CA2165469A1 (en) 1995-01-05
DE69416676T2 (de) 1999-09-16
IL110032A0 (en) 1994-10-07
NZ267921A (en) 1997-12-19
ZA944345B (en) 1995-04-03
AU7061194A (en) 1995-01-17
EP0703900A1 (en) 1996-04-03
US5710249A (en) 1998-01-20
JPH09500110A (ja) 1997-01-07
US5352796A (en) 1994-10-04
KR100308361B1 (ko) 2001-11-30

Similar Documents

Publication Publication Date Title
KR960703110A (ko) 길항 펩티드의 GnRH 제조를 위해 유용한 구아니디노 또는 변형된 구아니디노기를 함유하는 페닐알라닌 유도체 또는 동족체의 제조 방법(PROCESS FOR THE PREPA-RATION OF PHENYLALANINE DERIVATIVES OR HOMOLOGUES CONTAIN-ING A GUANIDINO OR MODIFIED GUANIDINO GROUP USEFUL FOR THE PREPARATION GnRH OF ANTAGONISTIC PEPTIDES)
US7186739B2 (en) Stabilized activated derivatives of carbamic acid, their process of preparation and their use for the preparation of ureas
JP6703669B2 (ja) リュープロレリンの製造方法
JPS60156700A (ja) トリペプチド化合物、その製造法および医薬組成物
US4535167A (en) Chiral, N-protected, N-substituted α-amino acids
WO2001019849A1 (en) A process for the preparation of h-tyr-d-ala-phe(f)-phe-nh¿2?
JPH0357118B2 (ko)
KR900009692A (ko) 레트로바이러스 프로테아제 억제제
JP2899327B2 (ja) 新規なペプチダーゼ基質類似体
SK157099A3 (en) Guanidinylation reagents
WO2023033016A1 (ja) アルギニン誘導体
JP2693492B2 (ja) 置換テトラフェニルボレートイオン含有グアニジン関連化合物及びその製法
WO2023033017A1 (ja) ガニレリクス又はその塩の製造法
BE1005720A3 (fr) Procede de synthese peptidique et nouveaux intermediaires de synthese.
KR960013073B1 (ko) 펩티드 아미노알킬아미드 및 펩티드 하이드라지드 및 고상법에 의한 이들의 제조방법
US6258976B1 (en) Process for the preparation of polyamines and polyamine derivatives
Douat et al. Post‐synthesis incorporation of a lipidic side chain into a peptide on solid support
AU2968899A (en) Process for the preparation of a tetrapeptide
Matthews et al. Monofunctional electrophilic and nucleophilic derivatives of meso-tetraphenylporphyrin for attachment to peptides
Shultz et al. Hydrophobicity versus activity in crosslinked interfacial peptide inhibitors of HIV-1 protease
US3873509A (en) Process of preparing peptides using diphenyl phosphoryl azide
ES2551007T3 (es) Proceso químico para la apertura de compuestos cíclicos
FR2616784A1 (fr) Composes guanidiniques comprenant un ion tetraphenylborate, procede d'obtention de ces composes et utilisation des composes lors de la synthese peptidique
JP4378745B2 (ja) 新規炭酸エステルおよびこれを用いたアミド化反応
JPH0717998A (ja) α−アミノ酸アミドの製造方法

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee