CS224469B1 - Method of l-/-amino-6,7-dimethoxy-2-quinazolinyl/-4-/2-furoyl/-piperazine in crystallic alpha form-l - Google Patents

Method of l-/-amino-6,7-dimethoxy-2-quinazolinyl/-4-/2-furoyl/-piperazine in crystallic alpha form-l Download PDF

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CS224469B1
CS224469B1 CS137480A CS137480A CS224469B1 CS 224469 B1 CS224469 B1 CS 224469B1 CS 137480 A CS137480 A CS 137480A CS 137480 A CS137480 A CS 137480A CS 224469 B1 CS224469 B1 CS 224469B1
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Czechoslovakia
Prior art keywords
furoyl
quinazolinyl
dimethoxy
amino
piperazine
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CS137480A
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English (en)
Inventor
Dieter Dr Lehmann
Gottfried Dr Faust
Werner Dr Poepel
Werner Dr Fiedler
Guenther Dietz
Original Assignee
Lehmann Dieter
Faust Gottfried
Werner Dr Poepel
Fiedler Werner
Guenther Dietz
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Application filed by Lehmann Dieter, Faust Gottfried, Werner Dr Poepel, Fiedler Werner, Guenther Dietz filed Critical Lehmann Dieter
Publication of CS224469B1 publication Critical patent/CS224469B1/cs

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Description

-1- 224 469
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Sto COefíHHeHHe ΜΟΗβΤ ΠρΗΜΘΗΗΤΒΟΗ ftTIH ΗβΗβΗΖΗ ΓΗΠβρΤΟΗΗΗ.oé, -$opMa npejíGTaBjmeT codoS cnenjiajiLHyio rapncTaTunmec-rayio ΜΟΛΗφΗκείΐΗΐο 3τογο coeflHHeHHH, oTjmaaioinyiocH οτηοοζτθηβ-ho HH3K0&amp; rarpocKomraHOCTLio. Ejiaroflapn θτομυ CBoiícTBy,no3BOJLmoineMy dojiee TozHyio flO3zpoBKy 3Ta MojuRjpzKaixHH ocoden-HO npUTOAHa flJLH rajieHOBOK φορΜΟΒΚΗ KapCTBSHHOH φορΜΗ.
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Cjieflywrií HeflocTaTOK θτογο cnocoda 3aKJnonaeTCH b tom,ήτο cupoS rnflpoxjiopnfl I-(4/aíMO-6,7~flHMeTOKOH-2-XKHa-3OJI3íHHJl)“4-(2-4>ypOHJX)-niIIiepa3HHa, IIOJiyHeHHHií KaKHM-JIHdOnyTeM, hq nojiynaioT HenocpeflCTBeHHo b KpHCTajLZBrcecKoiíoS-φορΜθ, a OHHCTKa mflpoxjiopnfla I-(4-aM2H0-6,7-fl2MeT0KC2- 2-~x0Ha3OJiHHKJi)-4-(2-í)ypoiui)-iiiinepa3HHa b jnodoíí KpncTajuiH-qeCKOÍÍ φΟρΜΘ 23-3a ero HJIOXO2 paCTBOpHMOCTH Π0ΗΤ2 BO BcexpaoTBopHTejuix HBjmeTCH οηθηβ fíoporoGToameft·
Cawa no cede floporocTOHman, ho HeodxoflHMaH onncTKa capo-ro rnflpoxjiopíma I-(4-aM2H0-6,7-fl2MeT0KC2-2-xHHa30Ji2H2Ji)~4-(2-$ypoHJi)-ininepa3HHa nyTeM nepeKpncTajumsannn BmnonaeTTOT flOnOJEHHTejIBHUH HeflOCTaTOK, ΗΤΟ B 3aB2C2M0CT2 OT ΒΗ—dpaHHux ycjioBHÉ nacTo HenocpeflCTBeHHo ηθ nonynaxT cL -φρ-My, npesnoHHTaeMyEO ajih TepaneBTHnecKnx nenen. Tax b npmae-pe 3 dd-ps 129 652 onncaBaeTCH, ητο 'J' -<popMa nojiynaeTCH23 ρ —φορΜΗ rHflpOXJIOpHfla I-(4-aMHH0-’6,7~fl2MeT0KCH~2-XHHa30-jEHHHJi)-4--(2-$ypo2Ji)-n2nepa3HHa nyTeM nepeapncTajumsanan H3H3oaM2JiOBoro cnnpTa npn HarpeBaHHH pacTBopa flo II5 °C . HHaodopoT, Kax npHBefleHO b npEMepe 4 τογο se naTeHTa, HarpeBa-ΗΗΘΜ Β3ΒΘ0Η -φ)θρΜΗ rZflpOXJIOpHfla I-(4-aMHHO-6,7-fl0MeTOKCH-2-XHHa3OJi2HHJi)-4-(2-$ypoHJi)-nHHepa3HHa Taxse b 23oaM2JioBOMοππρτβ, oflHaxo rq 130 -132 °G, noJiynaxiT ©t-$opMy.
Bojiee BaroflHaM chocoóom ohhctkh caporo rHflpoxJiopnflaI-( 4-aM2H0-6,7-fl2I4e T0KGH-2~X2Ha3 0JI2H2JI) -4- (2-4>ypO2Jl) -nxnepaBZHa, nojiyneHHoro κηκημ—jmdo nyTeM, ηκτηβΐοη nojiy-ηθηηθ 23 Hero cBodoflHoro οοηοβθηηη, Jierae noflflaxiqerocHonniueHHK) nyreM nepeKp2CTajui23an0H hjih flpyrnM cnocodoM,ηθμ ero rHflpoxjiopnfl.3aTeM rnflpoxjiopnfl mojkho nojiynaTB 23ΟΗΗΙξβΗΗΟΓΟ 0CH0BaH2H B 3THJI0B0M ΟΠΗρΤΘ C paCTBOpOM XJIOpHC-ΤΟΓΟ BOflOpOfla B fl23TH2QB0M ΘφΗρβ B COOTBeTCTB22 C DE-PS22 22 231.
HeflocTaTKOM θτογο cnocoda npo23BOflCTBa ηβ;ιηθτοη to, hto - 4 - 224 469 ΗΘΟόΧΟβΗΜΟ ΟΗΘΗΒ dOJILIHOe KOJUBieOTBO pa.CTBOpHTejLH (ftJIHpacTBopeHHH I εθοοβοη nacTH οοηοβθήηή I~(4-awíH0-6,7-jweTOKCH-2-XHHa3OjmiQíJi)-4-(2^ypoiui)-imiiepaBKHa TpedyeT-ca πρΗΜβρΗΟ 150 BecoBux aacTen qthjiobobo cirapTa) η ητο bθτηχ ycjioBHHX EpncTajunneoKaH -$opMa nmpoxjiopHnaI-(4-aMzno-6,7-jweTOKCH-2-xiffla3OJiHHHji) -4- (2-coypoHJi) -πη-nepasHHa He odpaayeTCH. Tojibko nocjie jxonojiHHTejiBHOH one-paumi, no dd-ps 129 652 nyTeM HarpeBanHH b οππρτθ, oo-flepjsaineM ot 5 jjo 7 aTOMOB yrjiepojxa, mojkho nojiynaTB κρη-CTajumaecKyio cO -góopMy.
KeglB H30ÓP6T6HHH H3odpeTeHne no3BOjraeT npoH3BO,HHTL nucTyio KpHGTajunneoKyx) &amp; -$opMy rnnpoxjiopH.ua I-(4-aMHHO-6,7-jweTOKGH-2-xHHa-3OJiHHKJi)-4-(2-$ypoHJi)-iiHnepa3HHa b cymeoTBeHHo ynpoqeH-HHX yCJIOBHflX, B HaCTHOCTH πρζ 3ΗΗΊΗΤθ;ΐΒΗ0 ÓOJiee HH3KHXTeMnepaTypax h o mchbiiihm KOjnraecTBOM pacTBopHTejieÉ hΤΘΜ OSMÉM C JiyaniHM BHXOflOM OTHOCHTejIBHO OdseMa Η ΒρθΜΘΗΗ.
H3JIO5teHHe OyiHHQCTH H30dp6T6HHH 3ajxaneÉ H3odpeTeHHH HBjweTcn ιιροη3βοαοτβο hhctoh κρη-CTajunnecKOH ot -^opMH rnnpoxjiopHfla I-(4-aMHH0-6,7- jm-MeT0KCH-2-XHHa3OJiHHHJi) -4- (2-čj5yponji) -nznepaBHHa oymeoTBeH-HO ynpOiqeHHHM CHOOOdOM. B ΟΟΟΤΒΘΤΟΤΒΗΗ C HaCTOHUíHM H30dpGTeHH6M ΓΗβρΟΧΛΟρΗΛ I—(4—aMZHQ-β, 7-jweTOKCH-2-x3ffla3OjiHHHJi) -4- (2-^ypozji) -imnepa3H-Ha yse ΗΜΘΙΟΙΙξΗΗΟΗ B JipyrOH KpHCTaJDIHHeOKOSt φορΜθ, ksk p -hjih γ -$opMa, hjih hx rnupaT, aHTHnpaT hjlh oojiLBaT ,nepe-bojvit b KpHOTajuiHHecKyK) c/ -ropMy, nepeMeiuzBan ero β βηλθcycneH3HH npn TeMnepaTypax ot 40 jio 95 °C b jtHMeTHJicyjii>$o~KCHHe, flHMeTHJi^opMawme hjih cMecnx hx .npyr c .ijpyroM hjih oapoMaTHnecKMH yrjieBOflopojiaMH, khk deH30Ji hjih TOJiyoji, rajio- - 5 - 224 469 ΓβΗπροΒΘΗΗΗΜΗ aJiii^aTiríecKMií yrjieBOňopoflaMK, khk xjiοροφορΜmm ^eTupexxjiopHCTUÉ yiuiepo#, κθτοηομκ, kbk aupTOH,προοτΗΜΗ 3$HpaMH, ksk /tfioKcaH, mra cnzpTaMH, cojiep&amp;aiwiiiot 2 ao 4 Q.TOMOB yrjiepo.ua, h οταθλβεη nojiy^eHHyio κριιοταπ-jnnecKyK ch -<x)pMy, npH ζ3βθοτηηχ ycjioBHBX, nocjie oxjiawHHH. B cjiynae πρημθηθηηη CMeoež pacTBop^Tejiefi KowiecTBeHHoeοοοτηοϊιιθηηθ κομποηθητοβ μο&amp;θτ KOJiedaTBCH b nmpoKHX npe-flejiax. OcoóeHHO bhto,hhhmii OKa3araoB CMecH b οοοτηοιπθηη-bx ot 10 : I so I : 10. B 3aBHCHM0CTií ot TeMnepaTypu h npuMeHBeMoro pacTBopHTejiBmra CMecH .pacTBopsTejiefi npeBpameirae b xpHCTajura μο&amp;θτjyiHTLCH OT 3 £0 20 BaGOB.
OnpeflejieHHe MOMOHTa, b κοτορϊώ npaKTHqecira hojihoctliooópa3OBajiaci> KpHGTajunneoKaH cZ* -$opMa rHspoxjiopimaI- (4-aMZHO-6,7-ftHMeTOKCH-2-xHHa3Ojrairaji) -4- (2-^ypomi) -nsnepasEHa b ρθθκιχηοηηοκ ομθοη, upobojbitcb η3βθοτηημηB XHMHH MeTO#aMH, ΗΗΠρίϊΜθρ ΟΠΘΚΤρΟΟΚΟΪΕΓΙΘΟΚΗΜ SCCJiejXOBa-ΗΗβΜ Πρθ0.
ΠΡΗΜΘΡΗ OOymeCTBJíeHHB H30dp6T6HZH B nocjie;íyw[x npHMepax Bcer.ua nojiyqajiacL KpacTajunraecKaaH^opMa na^poxjiopHsa Ι-(4-ημηηο-6,7-.ζβίμθτοκοη-2- xraa3OJiHHHJi)-4-(2-$ypoiui)-iBinepa3iiHa /4/. OnpeflejieiraeCTpyKTypa KpucTajuioB bo Bcex cjiy^aax npoBojpuiocB οπθκτρο-οκοπηήοοκημ HccjiesoBairae npod, eme Bnaaorax ot pacTBopz-tojih, b HH$paKpacHOH odjiacTH. Cyunca/4/npoBojíHJiacL npnTeMEepaTypax οτ 110 flo 120 °G. ípyrae KpHCTajLmnecKHeφορΜΗ rB^pOXJIOpUHa I-(4-aMHH0-6,7-flHMeT0KCI[-2-XHHa30JIH-mui)-4-)2^pypoKJi)-niniepa3ZHa, cjiysamne b npHMepax hcxojí- - 6 - 224 469 hum BemecTBOM, τΒκκβ 3apanee onpeftejuumcB μθτο^ομ HHcppa-KpacHofi cneKTpociconHH. ITpuMep I: Β3βθοβ H3 10 r rnflpoxjiopima I-(4-ar.!HHO-6,7-AHivieTOKCH--2-xHHa3OJDíHHJi)-4-(2-$ypoiui)-iiiinepa3HHá ( o -<popMa) b50 mji flHMeTOcyjiBfóoKCHEa HarpeBajOT jxo 60 °G β τθ^θηηθ7 ^acoB. Hocjie οχλθςήθηκη OTcacuBaiOT, ocaflOK npoMtmaioTaneTOHOM h cyinaT.
Bhxojí: 9 r/1/(90 % TeopeTiraecKoro Buxofla).
HpHMep 2: Αηθλογβήηο npiíMepy I πρόβολητ npeBpameime nmpoxjiopujiaI- (4-θμηηο-6,7-jweTOKCH-2-xifflaBOJiiíHXJi) -4- (2-mypoiUi) -mniepa3HHa (nojniTHApaTHaa $opMa) b flHMeTiuicyjiB$OKcimeb c4 -4>opMy.
HpHMep 3: ÁHajiora^HO npzMepy I HarpeBaraeM MeTaojiaTa rnjipoxjiopHflaI— (4—aMHHO—6,7-jweTOKCH-2-XHHa3OJiHHíUi) -4- (2-$ypozji) -nrniepasHHa b AHMeTiuicyjiLťpoKGHfle #o 90 °C β τθηθηηθ 3 na-cob nojiynaioT -$opMy.
HpHMep 4: Βθβθοβ 10 r raspoxjiopima Ι-(4-3μηηο-6,7-αημθτοκοη-2—XHHa3ojmHHJi)-4-(2-4ypoiDi)-iimiepa3iiHa (aurz^paTHaH φορ-Ma) b 50 mji jweTHJi$opMaMHaa HarpeBajoT rq 60 °C b Tene-ηξθ 7 HacoB, nocjie oxjiajKseHHa oTcacaBajoT, ocajiOK npoM&amp;-BaioT aupTOHOM h cymaT. Βηχολ: 9 r/1/ (90 % TeopeTiraecKoro BHXOfía). - 7 - 224 469 ΠρΗΜθρ 5: AHajiorumio irpHMepy 4 ppohcxoaht npeBpameHHe rimpoxjio-pufla I- (4-aMKHO-6,7-AHMeTOKGH-2-XHHa3OJiHHHJi) -4- (2-$yponji)-nmiepasHHa (-4>opMa) b jwewi$0MaMH#e b ds -$opMy. Πρημθρ 6:
HarpeBaiOT B3BecB 5 r rnjipoxjiopimá I-(4-aMHHO-6,7-flHMe-TOKCH-2-xzHa30jniHiM)-4-(2-$ypoHJi)-iiiínepa3HHa ( p -čoopMa)b cmsch H3 12,5 mji Tojiyojia flo 70 °G b Tenenze 8 zacoB.PeaKiíKOHHym cmgcl οοτηβίηιοτ ctoztb na hozl, 3aTeM ocajiozοτΑθΛΗΏΤ, npoMHBaiOT TOJiyojioM z apeioHOM z cymaT.
Buxofl: 4,7 r/l/(94$ TeopeTZHecKoro BHX0.ua). ΠρζΜβρ 7; AHajiorzzHO npzwepy 6 H3 5 r rzjipoxjiopzAa I-(4-aMHH0-6,7-jíHMeT0KCH-2-xHHa30JizHZJi) -4- (2-φγροιυι) -nznepa3ZHa(aHnpupaTHaH góopMa) b ομθοη Z3 2,5 mji jiHMeTHJicyjiB^KCHsaz22,5 mji TOJiyojia HarpeBaHneM jfo 70 °C b τθζθηζθ 15 zacosnoJiysaiOT 4,7 r/1/(94$ TeopeTzzecKoro Bnxo.ua). ΠρΗΜβρ 8: . nojiyqaeTca Taxon &amp;e pe3yjiLTaT, xax b npzMepax I so 7,eCJIH HCnOJIB3yiOT CMeCL flZMeTZJIGyJII^OKGHJía C MeTZJI$OMaMH-AOZ HJIH CMGCH flHMeTHJICyJLb$OKCHfla ZJIZ flZMeTZJI$OpMaL-IHSa 0apoMaTzzecKHMH yrjieBOflopoflaMH xax deH30Ji hjih TOJiyoji, ra-jioreHZ3HpoBaHHHMS amzroaTZzecKHMH yrmeBOflopoflarxK xax xxo-ροφορΜ ra zeTHpexxjiopzcTuft yrjiepofí, κθτοηβμη khk ape-TOH, npOGTHMS θφζρθΜΖ K3K JpiOKCaH HJIH ΟΠΖρΤθΜΗ, ΟΟΑθρΧθΠξΖμη οτ 2 λο 4 aTOMOB yrmepojia. $OpMyjia Η300ρθΤΘΗΗΗ 224 469
Cnocod nojiynenmi KpHCTajunnecKOM có πφορΜΕί rmiporniopn^aI-/4-aMHHO-6,7-KffivieT0KGH-2-XHHa30JiHHHJi/4-/ 2-/pypoiui/-ic-me-pa3HHa HarpesaHneM raj]poxjiopi5^a-I-/4-aMHHO-6,7~jweTOKCH--2-XHHa3Ojmmui/-4~/2-4)ypoiui/-inniepa3HHa mni ero ira^paTa,mru cojiLBaTa %o dojiee bucokux TewmepaTyp b npucyTCTBHspacTBopHTejm flo iipaKTiraecKH nojmoro odpasoBaHmi KpucTaji-jnnecKOH ού -φορκω, oTjranaioiiíEracH τθμ, ητο yse nweioimrifcH bspyroii KpncTajunnecKo0 φορΜθ, κεκ HanpuMep, β - mra'V -$opMa rmipoxjiopíma I-/4-arraH0-6,7-flHMeT0Kcn-2-xHHa30-jiHHmi/-4-/2^)ypomi/-iranepa3iiH mra nx nmpaT, araraupaT mraccwr&amp;BaT nepeMennroaioT npn TeMnepaTypax ot 40 ao 95 °C bflHMeTmicyjiL$0KCH1ne, jweTmižoMarBW mra CMecnx hx Apyr c.npyroM mra c apOMaTHnecKHMX yrjieBOftopoftaMH khk demoji mraTojiyoji, rajioreHH3npoBaHHuira ajm^aTmiecKHMu ynneBojiopoflaMHKas χποροφορΜ mra neTupexxjiopHCTHS: yrjiepoA, κθτοηθμη khkaijeTOH, npocTHira θφκρεΜΗ Kaic jraokcaH, mra cimpTaira, co-flepsamuMH ot 2βο 4 aTOMOB yrjiepo^a, n, řípu cnynae nociieoxaawHHfí, ~ ’ οταθληιοτ nojiyneimyio KpHCTamranec-Kyro -$opMy rajpoxjiopHfla Ι-/4-3μηηο-6,7-λεμθτοκοη-2-:...-xHHa30jraHmi/-4~/ 2-$ypomi/-iranepa3HHa. * 224 469 AHHOTaiw
KpHCTajunniecKaji -$opMa rHApoxjiopo;a I-/4-aMHH0-6,7-jmr^e-TopKCH-2-XHHa30jiHHo/~4-/2-$ypoo/-iiHnepa3HHa ΜΟίχθτ ólítbnojiyneHa npn noMoiiíH nepeMemHBajDiH, npn TeMnepaTypax ot 40£0 95 °G pce HMeíoineroca b .npyroií κρποταοοθοκοΗ φορΜβ,
KaK HaiipHMep, β - hjihT -epopea rnspooopíma I-/4-aMHH0--6,7-jweTOKCH-2-zHHa3(wiHZJi/-4-/2^ypoo/-nHnepa3HHa rahx ropaT, aaropaT mm cojiBBaT b ňHMeTocyjiL$oKcoe, jm-ΜΘΤκπφοΜθΜΗβθ mra CMecBX hx flpyr C ΛΡΥΓΟΜ OH c apoMaTH—ηθοκημη yivieBOftopojiaMH xaK óeH30Ji ra Tojiyoji, rajioreHH3H-pOBaHHHMH aJDK^aTHHeCKHMH yTJieBOAOpO^aMH KHK XJIOpO$OpM OHΗΘΤΈΐρθΧΧΗΟρΗΟΤίώ yTJiepO#, ΚΘΤ0Η3ΜΗ K3IC aneTOH, npOCTBMHθφπρβΜΞ KaK flHOKCaH, HJIH CHHpTaMH, COftepzaHíHMH OT 2 SO 4aTOMOB yrjiepo.ua 5 h, npw cjiynae nocne oxjiasaeHHH, OT#ejunoT HOjiyHeHHyio KpHCTajuiHHecKyio cb -ajfopMy ropo-xjiopoa I-/4-aMHHO-6,7-AHMeTOKCH-2-XHHa30jiHHo/-4-/2-^)ypo-o/-HHnepa3HHa.
WggWK···" »· 7U

Claims (1)

  1. 224 469 ic PŘEDMĚT VYNÁLEZU Způsob přípravy krystalické <*?-formy hydrochloridu 1-(4-amino-6,7-dimethoxy-2-chinazolinyl )-4- (2-furoyl )-piperazinuzahříváním hydrochloridu i-(4-amino-6,7-dimethoxy-2-chinazoli-nyl)—4—(2—furoyl)—piperazinu nebo jeho hydrátu nebo sol vátuv přítomnosti rozpouštědla do prakticky úplné tvorby krystálické of-formy, vyznačující se tím, že se v jiné krystalické for-mě, napříkladβ- nebo formě, existující hydrochlorid 1-(4-amino-6,7-dimethoxy-2-chinazolinyl)-4-(2-furoyl)-piperazin ne-bo jeho hydrát, anhydrát nebo solvát míchá při teplotách od 40do 95 °C v dimethyl sul f oxidu, dimethylforaamidu nebo jejichvzájemných směsích nebo směsích a aromatickými uhlovodíky jakoje benzen nebo toluen, halogenovynými alifatickými uhlovodíkyjako je chloroform nebo chlorid uhličitý, ketony jako je ace-ton, ethery jako je dioxan nebo alkoholy obsahujícími 2 až 4atomy uhlíku, popřípadě po ochlazení se oddělí získaná krysta-lická <?ď-forma hydrochloridu 1-(4-amino-6,7-dimethoxy-2-china-zolinyl)-4-(2-furoyl)-piperazinu. Uznáno vynálezem na základě výsledků expertizy, provedené Úřa-dem pro vynálezectví a patentnictví, Berlín, DD
CS137480A 1979-03-29 1980-02-27 Method of l-/-amino-6,7-dimethoxy-2-quinazolinyl/-4-/2-furoyl/-piperazine in crystallic alpha form-l CS224469B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD21188479A DD141674B1 (de) 1979-03-29 1979-03-29 Verfahren zur herstellung der kristallinen alpha-form von 1-(4-amino-6,7-dimethoxy-2-chinazolinyl)-4-(2-furoyl)-piperazin-hydrochlorid

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CS224469B1 true CS224469B1 (en) 1984-01-16

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CS137480A CS224469B1 (en) 1979-03-29 1980-02-27 Method of l-/-amino-6,7-dimethoxy-2-quinazolinyl/-4-/2-furoyl/-piperazine in crystallic alpha form-l

Country Status (7)

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CS (1) CS224469B1 (cs)
DD (1) DD141674B1 (cs)
HU (1) HU182796B (cs)
PL (3) PL128496B1 (cs)
RO (3) RO83455B (cs)
SU (1) SU1206277A1 (cs)
YU (3) YU41908B (cs)

Also Published As

Publication number Publication date
YU41908B (en) 1988-02-29
PL129723B1 (en) 1984-06-30
RO83455B (ro) 1984-02-28
YU26883A (en) 1983-10-31
RO83455A (ro) 1984-02-21
YU26783A (en) 1984-04-30
HU182796B (en) 1984-03-28
PL129719B1 (en) 1984-06-30
DD141674A1 (de) 1980-05-14
SU1206277A1 (ru) 1986-01-23
DD141674B1 (de) 1982-06-30
YU36180A (en) 1983-06-30
YU42069B (en) 1988-04-30
YU42068B (en) 1988-04-30
PL128496B1 (en) 1984-01-31
RO79381A (ro) 1982-06-25
PL223051A1 (cs) 1980-12-15
RO83442B (ro) 1984-02-28
RO83442A (ro) 1984-02-21

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