DK149594B - Analogifremgangsmaade til fremstilling af dipeptidderivater eller syreadditionssalte heraf - Google Patents
Analogifremgangsmaade til fremstilling af dipeptidderivater eller syreadditionssalte heraf Download PDFInfo
- Publication number
- DK149594B DK149594B DK016978AA DK16978A DK149594B DK 149594 B DK149594 B DK 149594B DK 016978A A DK016978A A DK 016978AA DK 16978 A DK16978 A DK 16978A DK 149594 B DK149594 B DK 149594B
- Authority
- DK
- Denmark
- Prior art keywords
- acid
- angiotensin
- formula
- addition salts
- acid addition
- Prior art date
Links
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Classifications
-
- C—CHEMISTRY; METALLURGY
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Description
o i 14959Λ
Den foreliggende opfindelse angår en analogifrem-gangsmåde til fremstilling af hidtil ukendte dipeptidderi-vater med den almene formel
5 R1-N-H
(^'H2)m * ?
R3-S-(CH-) -CH-CO-N-CH-CO-R I
2 n „ x x eller syreadditionssalte heraf, hvori R er hydroxy eller 1 3 10 Ci-C7 alkoxy, R er C^-C7 alkanoyl, R er hydrogen eller C1-C7~ alkanoyl, A og B danner tilsammen en (Ci^Jp-bro, der fuldender en usubstitueret ring på 5 eller 6 atomer med det nitrogen eller carbon, hvortil de er bundet, n er 0 eller 1, m er 0, 1, 2, 3 eller 4, idet mindst enten m 15 eller n er forskelligt fra 0, og p er 3 eller 4. Forbindelser med formlen I er inhibitorer for det angiotensin-omdannende enzym og udgør som sådanne værdifulde antihy-pertensive midler.
Særlig foretrukne er sådanne forbindelser med form-20 len I, der stammer fra prolin og har formlen
R1-N-H
3 Wm Γ I
R -S-(CH-) CH CO-N CH-CO-R II
25 *
Symbolerne har de samme betydninger som anført ovenfor.
alkoxygrupperne er f.eks. methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy eller t^butoxy. Grupper med 1-4 carbonatomer, især med 1 eller 2 carbonatomer 30 er foretrukne, især methoxy og t-butoxy. C^-C^ alkanoyl-grupperne er acylgrupper af de lavere fede syrer med op til 7 carbonatomer, f.eks. acetyl, propionyl og butyryl, idet acetyl er foretrukket.
Fremgangsmåden ifølge opfindelsen er ejendommelig 35 ved, at en aminosyre med formlen
O
149594 2
AB
HN-CH-COR III
hvor A, B og R har de ovenfor anførte betydninger, acy-5 leres med en syre med formlen
R1-N-H
3 Wm
R -S-(CH2)n — CH — COOH IV
10 1 3 hvor R , R , m og n har de ovenfor anførte betydninger, idet syren IV, før omsætning med aminosyren III, overføres til et aktiveret carboxylsyrederivat (såsom et blandet syreanhydrid, et symmetrisk anhydrid, et syrechlorid, en 15 aktiv ester, Woodwards/reagens K, en Ν,Ν'-carbonylbisimid-azol eller N-ethoxycarbonyl-2-ethoxy-l,2-dihydroquinolin (EEDQ)), en fremkommen syre om ønsket omdannes til en alkylester deraf, en fremkommen alkylester om ønsket omdannes til den frie syre, en thioester om ønsket omdannes 20 til den tilsvarende thiol ved fraspaltning af alkanoyl- 3 gruppen R ved behandling med stærk base, f.eks. ammoniak, et fremkommet racemat om ønsket opdeles i optisk aktive former, og/eller en fremkommen forbindelse om ønsket omdannes til et syreadditionssalt heraf.
25 Udgangsmaterialer med formlen IV, hvor m er 0 og n er 1, er derivater af cystein, der kan fremstilles ved kendte metoder.
Syrerne med formlen IV, hvor m er 2, 3 eller 4, og n er 1, kan syntetiseres ifølge en foretrukken metode 30 ved tilsætning af en thiolsyre til den substituerede a-crylsyre med formlen
R1-N-H
Wm V
35 .^C \ CH2 co2h
O
149594 3
Sidstnævnte opnås ved hydrolyse, f.eks. med 6N saltsyre, af methylenlactamer med formlen * (CH,)—m
5 I 2 m I VI
H2C='-c=o 10 (J. Org. Chem. 39, 893 (1974)).
Produkter med formlen I har to asymmetriske carbon-atomer. Disse carbonatomer er betegnet med en stjerne i formlen I. Derfor forekommer forbindelserne i diastereo-isomere former eller i racemiske blandinger deraf. Alle ig disse falder inden for opfindelsens omfang. De ovenfor beskrevne synteser kan anvende racematet eller en af de enantiomere som udgangsmateriale. Når der anvendes race-misk udgangsmateriale til syntesemetoden, kan de stereoisomer e, der fås i produktet, skilles fra ved gængse 20 chromatografiske eller fraktionel-krystallisationsmetoder. I reglen udgør den L-isomere med hensyn til car-bonatornet i aminosyren den foretrukne isomere form.
Forbindelserne med formlen I danner syreadditionssalte, som ligeledes udgør en del af opfindelsen. Syre-25 additionssaltene dannes ved omsætning med en række uorganiske og organiske syrer, der giver syreadditionssalte, herunder f.eks. hydrohalogenider (især hydrochlorid og hydrobromid), sulfat, nitrat, borat, phosphat, oxalat, tartrat, maleat, citrat, acetat, ascorbat, succinat, ben-30 zensulfonat, methansulfonat, cyclohexansulfamat og toluen-sulfonat.
Saltene dannes på gængs måde ved at omsætte den frie form af produktet med et eller flere ækvivalenter af en passende syre eller base, der kan give den ønskede 35 anion eller cation, i et opløsningsmiddel eller -medium, hvori saltet er uopløseligt, eller i vand og fjerne U9594 4
O
vandet ved frysetørring. Ved at neutralisere saltet med en uopløselig syre såsom en cationbytterharpiks i hydrogen- form (f.eks. polystyrensulfonsyreharpiks-"Dowex 50 (Miles Laboratory Handbook of Chromatographic Methods, 5 Van Nostrand, 1961, side 256) , eluere med en flygtig puffer (f.eks. pyridin/eddikesyre) og ekstrahere med et organisk opløsningsmiddel, kan man få den frie form, og der kan eventuelt dannes et andet salt.
Forbindelserne, der fremstilles ved fremgangs-10 måden ifølge den foreliggende opfindelse, hæmmer omdannelsen af decapeptidet angiotensin I til angiotensin XI og er derfor værdifulde til formindskelse eller fjernelse af angiotensin-fremkaldt hypertension. Virkningen af enzymet renin på angiotensinogen, et pseudoglobulin 15 i blodplasmaet, frembringer angiotensin I. Angiotensin I omdannes ved hjælp af det angiotensinomdannende enzym (ACE) til angiotensin il. Dette sidste er et aktivt pressorstof, der angives som fremkaldende årsag til forskellige former for hypertension hos forskellige pat- 20 tedyrearter, f.eks. rotter, hunde osv. Forbindelserne, der fremstilles ved fremgangsmåden ifølge opfindelsen, griber
ind i rækkefølgen angiotensinogen -^ angiotensin I
-> angiotensin II ved at hæmme det angiotensinomdannende enzym og reducere eller eliminere dannelsen af 25 _ pressorstoffet angiotensin II.
Inhiberingen af det angiotensinomdannende enzym ved hjælp af forbindelser med formlen I kan måles in vitro med isoleret angiotensinomdannende enzym fra kaninlunger ved hjælp af den af Cushman og Cheung i Biochem.
30
Pharmacol., 20, 1637 (1971) beskrevne metode og ved hjælp af et forsøg med udskåret glat muskulatur (E. O'Keefe m.fl., Federation Proc. 31, 511 (1972)), ved hvilke forsøg disse forbindelser har vist sig at være kraftige inhibitorer af angiotensin I's kontraktile virkning og 35 forstærkere af bradykinins kontraktile virkning.
5 T49594 ο
Indgivelse af et middel indeholdende en eller en kombination af forbindelser med formlen I eller et fysiologisk acceptabelt salt heraf til pattedyrearter med hypertension ophæver eller reducerer hypertensionen.
5 En enkelt daglig dosis eller fortrinsvis opdelt i to eller fire doser beregnet på basis af ca. 5-1000 mg/kg/dag, fortrinsvis 10-500 mg/kg/dag, er passende til at sænke blodtrykket. De af S.L. Engel, T.R. Schaeffer, M.H. Waugh og B. Rubin i Proc. Soc. Exp. Biol. Med. 143, 483 (1973) 10 beskrevne dyreeksperimenter kan tjene som en nyttig rettesnor .
Stoffet indgives fortrinsvis oralt, men der kan også anvendes parenterale veje såsom subcutant, intra-muskulært, intravenøst eller intraperitonealt.
15 Forbindelserne, der fremstilles ved fremgangsmåden ifølge opfindelsen, kan anvendes til nedsættelse af blodtrykket, ved at sammensættes til præparater såsom tabletter, kapsler eller eliksirer til oral indgivelse eller i steril opløsning eller suspension til parenteral indgivelse. Ca.
20 10-500 mg af en forbindelse eller en blanding af forbin delser med formlen I eller et fysiologisk acceptabelt salt deraf blandes med et fysiologisk acceptabelt opløsningsmiddel, bærestof, excipiens, bindemiddel, konserveringsmiddel, stabilisator, smagsstof etc. til en enheds-25 doseringsform ifølge gængs farmaceutisk praksis. Mængden af aktivt stof i disse præparater er afpasset således, at der fås en passende dosering inden for det angivne interval.
De følgende eksempler tjener til belysning af fremgangsmåden ifølge opfindelsen.
30 35 U9594 6
O
/
Eksempel 1 N,S-Diacetyl-DL-cysteinyl-L-prolin-tert.butylester
Til en opløsning af 0,85 g L-prolin-tert.butyl-5 ester og 0,67 g hydroxybenzotriazol i 10 ml methylen-chlorid afkølet i isbad sættes først 1,03 g dicyclo-hexylcarbodiimid og derefter 1,2 g N,S-diacetyl-DL--cystein. Efter 15 minutters forløb fjernes isbadet, og blandingen omrøres ved stuetemperatur natten over. Bund-10 faldet filtreres fra, og filtratet vaskes med 10% ka-liumbisulfat, vand, mættet natriumbicarbonat og vand.
Den organiske fase tørres og inddampes til tørhed i vakuum, hvilket giver den i overskriften nævnte forbindelse som en olie. - 0,25 (silicagel, ethylacetat).
15
Eksempel 2 N,S-Diacetyl-DL-cysteinyl-L-prolin 1,9 g N,S-diacetyl-DL-cysteinyl-L-prolin-tert.bu-20 tylester opløses i en blanding af 6 ml anisol og 12 ml trifluoreddikesyre, og opløsningen opbevares ved stuetemperatur i en time. Opløsningsmidlerne fjernes i vakuum, og remanensen udfældes fra ethylacetat/ether/hexan, hvorved fås den i overskriften nævnte forbindelse i et 25 udbytte på 1,08 g, smeltepunkt 80-140°C.
Eksempel 3 N-Acetyl-DL-cysteinyl-L-prolin 30 0,3 g N,S-diacetyl-DL-cysteinyl-L-prolin opløses i en blanding af 4 ml vand og 4 ml koncentreret ammoniak under et argontæppe. Opløsningen opbevares i 30 minutter ved stuetemperatur, mættes med natriumchlorid og ekstra-heres med ethylacetat og chloroform. De organiske lag sam-35 les og inddampes til tørhed i vakuum, hvorved fås den i overskriften nævnte forbindelse i et udbytte på 0,1 g,
Rj = 0,25 (silicagel; benzen/eddikesyre, 75:25).
149594
O
7
Biologiske data
Den farmakologiske anvendelighed af forbindelserne med ovenstående formel I er som nævnt baseret på disses evne til at inhibere virkningen af det angiotensinomdannende 5 enzym. Denne inhibering bestemmes først på basis af in vitro forsøg ved måling af virkningen på angiotensinomdannende enzym ekstraheret fra kaninlunge og ved bestemmelse af den inhibitoriske aktivitet over for kontraktioner fremkaldt med angiotensin I på ileum (tyktarm) fra marsvin. Disse for-10 søg er standardprøver, der benyttes i marken, og som beskrives nærmere nedenfor:
Inhibition af det angiotensinomdannende enzym isoleret fra kaninlunge.
Aktiviteten af det angiotensinomdannende enzym fra 15 en cellefri ekstrakt af kaninlunge måles ved spektrofotome- trisk bestemmelse af hippursyre, der frigives ved indvirkning af enzymet på hippuryl-L-histidyl-L-leucin (HHL) således som beskrevet af Cushman og Cheung i Biochem. Pharmacol. 20, 1637 (1971).
20 /øV-Gly-Hls-Leu-> ^Q^-Gly + His-Leu '-/ HHL hippursyre Måling af inhibition af det angiotensinomdannende 30 enzym, som anvendes ved dette spektrofotometriske forsøg, kræver inkubering af følgende komponenter ved 37°C i et rumfang på 0,25 ml: 100 mM phosphatpuffer (pH 8,3) 300 mM natriumchlorid 35 0,001-1000^,ug/ml inhibitor eller slet ingen inhibitor
5-10 millienheder enzym 3 mM HHL
149594 8 o
Efter inkubation af de ovenfor anførte komponenter ved forskellige inhibitorkoncentrationer eller i fraværelse af inhibitorer i det hele taget i 30 minutter standses enzymreaktionen ved tilsætning af 0,25 ml 1 N saltsyre. Der skal 5 også gennemføres kontrolforsøg, hvor enzymet inaktiveres til tiden nul ved tilsætning af syren før enzymet. Der tilsættes 1,5 ml ethylacetat til hvert reagensglas til at ekstrahere hippursyren, som dannes ved hjælp af enzymet. Efter 20 sekunders kraftig blanding (i hvirvelblander) og fraskillelse af 10 ethylacetatlaget ved centrifugering udtages en aliquotdel af opløsningsmidlet på 1,0 ml og inddampes til tørhed ved 100°C, og hippursyren opløses på ny i 1,0 ml vand og bestemmes kvantitativt ved måling af dens absorptionsevne ved 228 nm.
15 inhibitorernes kraft over for det angiotensinomdannen- de enzym udtrykkes som I^Q-værdien, som er den mængde inhibitor i^ug/ml eller den^uM koncentration, der kræves for at inhibere 50% af det angiotensinomdannende enzyms aktivitet således som bestemt ved den spektrofotometriske forsøgsmeto-20 de. Denne værdi fås ved at afsætte den procentvise inhibition, som frembringes ved inhibitorkoncentrationer, der varierer med spring på 2 til 3 gange over et interval fra 0,001^ug/ml til 1000yug/ml. Denne procentvise inhibition beregnes ifølge nedenstående udtryk: 25 (A-A°) - (B-B°) % inhibition = - (A-A°) hvor A er hippursyres absorptionsevne ved et 30 minutters 30 forsøg udført uden inhibitor, A° er baggrundsabsorptionsevnen ved et forsøg inkuberet i 0 minutter, B er absorptionsevnen for hippursyre ved et 30 minutters forsøg ved den afprøvede inhibitorkoncentration, og 35 B° er baggrundsabsorptionsevnen ved et forsøg indeholden de inhibitoren, men inkuberet i 0 minutter.
O
9 14959Λ
Procedure ved afprøvning af den inhibitoriske aktivitet over for det angiotensin I omdannende enzym (ACE) målt_ på marsvineileum in vitro.
Denne metode anvendes til at bestemme, hvorvidt en 5 forbindelse er en inhibitor over for det angiotensin I omdannende enzym på grundlag af dets aktivitet mod kontraktioner fremkaldt med angiotensin I på marsvineileum. ACE-inhibi-torer inhiberer typisk kontraktioner fremkaldt med angiotensin I.
1° Ikke-fastede marsvin af stammen Hartley og af begge køn med en vægt på ca. 300-400 g dræbes ved et slag mod hovedet. Ileum udtages, og portioner på 2-3 cm deraf præpareres ifølge den af Vane beskrevne metode, jvf. J.R. Vane Brit.
J. Pharmacol. 23, side 360 (1964). Hver enkelt ileusstrimmel 15 ophænges derefter i et 10 ml's vævsbad fyldt med Krebsopløsning (jvf. R.C. Handschumacher og J.R. Vane Brit. J. Pharmacol. 29, side 105 (1967), der holdes ved 37°C og luftes med 95% 02/5% CC^· Muskelaktiviteten optegnes isotonisk linder en belastning på 1 g og under anvendelse af Harvard nr. 356 20 hjertemuskel/glatmuskulatur-transducer forbundet til en
Beckman type R dynograf.
Efter at vævene er kommet i ligevægt i løbet af ca. 90 minutter fås 2 minutters kontrolrespons med 10 minutters intervaller ved hjælp af følgende agonist: 25
Angiotinsin I (A-I), 0,025yug/ml endelig badkonc.
De kontraktioner, der frembringes ved denne koncentration af A-I, repræsenterer 50-75% af det maksimale.
30 Prøveforbindelsen opløses sædvanligvis i en vandig opløsning eller i saltvandsopløsning, og der fremstilles 10-foldige fortyndinger i vand. Agonisten forbehandles i 2 minutter med prøveforbindelsen, og den procentvise ændring i kontraktilrespons beregnes på computer ved hjælp af følgen-35 de udtryk: 149594 10 o
A-B
- x 100
A
5 hvor A er kontraktionen i mm med AI før tilsætning af prøveforbindelsen, og B er kontraktionen i mm for AI efter tilsætning af prøveforbindelsen.
De specifikke aktive forbindelser, dvs. de forbin-10 delser, der sandsynligvis vil virke som inhibitorer af det ahgiotensinomdannende enzym, inhiberer typisk angiotensin I fremkaldte kontraktioner.
EC,.q beregnet på ovenstående måde betegnes til tider IC50, der står for den koncentration af prøveforbindelsen, 1g som tilvejebringer 50%'s inhibering af AI's kontraktive virkning, og disse værdier bestemmes grafisk eller biometrisk.
Et minimum af koncentrationer af prøveforbindelsen anvendes typisk for at konstruere koncentrations-inhibitionsresponskur-ven.
2Q I nedenstående tabel er opregnet data for EC5Q og ICfcn for en repræsentativ forbindelse med den almene formel 5U I.
11 1Λ 9 5 9 Λ IC5Q tærskel- ecsq tærskel“
Forbindelsens struktur værdi i^ug/ml værdi i^uM/liter 0 0 Γ^Ί CH -C-S-CH -CH-C-N-t-COOH 22^00000 23^000 3 2 j
NH
f ch3
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75968577 | 1977-01-17 | ||
| US05/759,685 US4113715A (en) | 1977-01-17 | 1977-01-17 | Amino acid derivatives |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK16978A DK16978A (da) | 1978-07-18 |
| DK149594B true DK149594B (da) | 1986-08-04 |
| DK149594C DK149594C (da) | 1987-03-16 |
Family
ID=25056579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK16978A DK149594C (da) | 1977-01-17 | 1978-01-13 | Analogifremgangsmaade til fremstilling af dipeptidderivater eller syreadditionssalte heraf |
Country Status (15)
| Country | Link |
|---|---|
| US (6) | US4113715A (da) |
| JP (1) | JPS5390218A (da) |
| AU (1) | AU518282B2 (da) |
| BE (1) | BE862944A (da) |
| CA (1) | CA1132136A (da) |
| CH (1) | CH632991A5 (da) |
| DE (1) | DE2801911A1 (da) |
| DK (1) | DK149594C (da) |
| FR (1) | FR2377374A1 (da) |
| GB (1) | GB1600461A (da) |
| HU (1) | HU180529B (da) |
| IE (1) | IE46364B1 (da) |
| NL (1) | NL7800536A (da) |
| NO (1) | NO150397C (da) |
| SE (1) | SE445352B (da) |
Families Citing this family (102)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198517A (en) * | 1976-12-03 | 1980-04-15 | E. R. Squibb & Sons, Inc. | Histidine derivatives |
| LU78804A1 (de) * | 1977-12-30 | 1979-07-20 | Byk Gulden Lomberg Chem Fab | N-substituierte w-aminoalkanoyl-w-aminoalkansaeuren,ihre verwendung und verfahren zu ihrer herstellung sowie diese verbindungen enthaltende arzneimittel |
| US4241076A (en) * | 1978-02-21 | 1980-12-23 | E. R. Squibb & Sons, Inc. | Halogenated substituted mercaptoacylamino acids |
| US4179568A (en) * | 1978-07-31 | 1979-12-18 | E. R. Squibb & Sons, Inc. | (N-lower alkyl-3,5-dioxo-3-pyrrolidinyl)thioalkanoylpyrrolidine-and piperidine-carboxylic acid compounds |
| CA1144930A (en) * | 1978-08-11 | 1983-04-19 | Miguel A. Ondetti | Mercaptoacyl derivatives of substituted prolines |
| US4690938A (en) * | 1979-08-14 | 1987-09-01 | University Of Miami | Anti-hypertensive agents |
| US4695577A (en) * | 1979-08-14 | 1987-09-22 | University Of Miami | Anti-hypertensive agents |
| US4690937A (en) * | 1979-08-14 | 1987-09-01 | University Of Miami | Anti-hypertensive agents |
| US4698355A (en) * | 1979-08-14 | 1987-10-06 | University Of Miami | Anti-hypertensive agents |
| US4698356A (en) * | 1979-08-14 | 1987-10-06 | University Of Miami | Anti-hypertensive agents |
| US4690939A (en) * | 1979-08-14 | 1987-09-01 | University Of Miami | Anti-hypertensive agents |
| GR73585B (da) * | 1978-09-11 | 1984-03-26 | Univ Miami | |
| ZA794723B (en) * | 1978-09-11 | 1980-08-27 | Univ Miami | Anti-hypertensive agents |
| US4690940A (en) * | 1979-08-14 | 1987-09-01 | University Of Miami | Anti-hypertensive agents |
| US4483861A (en) * | 1978-10-31 | 1984-11-20 | Santen Pharmaceutical Co., Ltd. | Antihypertensive sulfur-containing compounds |
| US4198515A (en) * | 1978-12-08 | 1980-04-15 | E. R. Squibb & Sons, Inc. | Mercaptoacyl derivatives of 4,5-dihydro-1H-pyrrole-2-carboxylic acids and 1,4,5,6-tetrahydropyridine-2-carboxylic acids |
| US4217359A (en) * | 1979-01-15 | 1980-08-12 | E. R. Squibb & Sons, Inc. | Carbamate derivatives of mercaptoacyl hydroxy prolines |
| US4181663A (en) * | 1979-01-29 | 1980-01-01 | E. R. Squibb & Sons, Inc. | Selenium containing derivatives of proline and pipecolic acid |
| ZA802420B (en) * | 1979-05-18 | 1981-04-29 | Squibb & Sons Inc | Aminoacyl derivatives of mercaptoacyl amino acids |
| US4329473A (en) * | 1979-06-01 | 1982-05-11 | Almquist Ronald G | Oxoalkanoic acid derivatives as inhibitors of angiotensin converting enzyme |
| US4297275A (en) * | 1979-06-25 | 1981-10-27 | E. R. Squibb & Sons, Inc. | Inhibitors of mammalian collagenase |
| JPS5629403U (da) * | 1979-08-13 | 1981-03-20 | ||
| PT70158A1 (en) * | 1980-03-03 | 1982-03-01 | Univ Miami | Process for preparing anti-hypertensive agents |
| US4734420A (en) * | 1980-03-05 | 1988-03-29 | University Of Miami | Anti-hypertensive agents |
| US4690936A (en) * | 1980-03-05 | 1987-09-01 | University Of Miami | Anti-hypertensive agents |
| US4692458A (en) * | 1980-03-05 | 1987-09-08 | University Of Miami | Anti-hypertensive agents |
| US4342689A (en) * | 1980-04-28 | 1982-08-03 | American Cyanamid Company | ω-Heteroaroyl(propionyl or butyryl)-L-prolines |
| US4342690A (en) * | 1980-04-28 | 1982-08-03 | American Cyanamid Company | ω-Heteroaroyl(propionyl or butyryl)-L-prolines |
| US4299769A (en) * | 1980-04-28 | 1981-11-10 | American Cyanamid Company | ω-Heteroaroyl(propionyl or butyryl)-L-prolines |
| US4342691A (en) * | 1980-04-28 | 1982-08-03 | American Cyanamid Company | ω-Heteroaroyl(propionyl or butyryl)-L-prolines |
| US4284624A (en) * | 1980-05-02 | 1981-08-18 | E. R. Squibb & Sons, Inc. | Mixed disulfides |
| GB2076809B (en) * | 1980-05-30 | 1984-03-14 | Squibb & Sons Inc | N-substituted mercapto propionamides |
| US4629787A (en) * | 1980-08-18 | 1986-12-16 | Merck & Co., Inc. | Substituted caprolactam derivatives as antihypertensives |
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| US4462943A (en) * | 1980-11-24 | 1984-07-31 | E. R. Squibb & Sons, Inc. | Carboxyalkyl amino acid derivatives of various substituted prolines |
| US4402969A (en) * | 1981-03-23 | 1983-09-06 | Merck & Co., Inc. | Antihypertensive proline derivatives |
| US4356118A (en) * | 1981-06-02 | 1982-10-26 | G. D. Searle & Co. | Tryptophan derivatives |
| US4587238A (en) * | 1981-07-06 | 1986-05-06 | Merck & Co., Inc. | Substituted caprylolactam derivatives as anti-hypertensives |
| US4377701A (en) * | 1981-09-21 | 1983-03-22 | E. R. Squibb & Sons, Inc. | 4-Methylene-1-[[(alranoyl or arylcarbonyl)mercapto]acyl]proline and pipecolic acid |
| US4435329A (en) | 1981-10-16 | 1984-03-06 | American Cyanamid Company | Substituted N-(ω-aroylpropionyl) derivatives of α-amino acids and esters thereof |
| IT1140394B (it) * | 1981-12-23 | 1986-09-24 | Maggioni Farma | Dipeptidi contenenti un residuo di metionina ad attivita' epatoprotettrice |
| US4866087A (en) * | 1982-01-21 | 1989-09-12 | Merck & Co., Inc. | Carboxyalkyl urea compounds and derivatives thereof useful as angiotensin converting enzyme inhibitors and as antihypertensives |
| US4555503A (en) * | 1982-05-05 | 1985-11-26 | Merck & Co., Inc. | N2 -(Substituted)carboxymethyl-N6 -(substituted)-lysyl-and αε-aminoalkyl)glycyl amino acid antihypertensive agents |
| US4483850A (en) * | 1982-05-10 | 1984-11-20 | Merck & Co., Inc. | N-Terminal substituted oligopeptide converting enzyme inhibitors |
| US4442038A (en) * | 1982-09-17 | 1984-04-10 | Norwich Eaton Pharmaceuticals, Inc. | Converting enzyme inhibitors |
| US4634716A (en) * | 1982-09-30 | 1987-01-06 | Merck & Co., Inc. | Substituted N-carboxymethyl-aminoacylaminoalkanoic acids useful as antihypertensive agents |
| US4472384A (en) * | 1983-06-15 | 1984-09-18 | Merck & Co., Inc. | Antihypertensive composition |
| US4617301A (en) * | 1983-06-22 | 1986-10-14 | Merck & Co., Inc. | Sulfoxide and sulfone derivatives of bicyclic lactams as antihypertensives |
| US4558037A (en) * | 1984-06-04 | 1985-12-10 | Merck & Co., Inc. | Cardiovascular composition |
| US4585757A (en) * | 1984-07-27 | 1986-04-29 | Texas Tech University Health Sciences Center | Hypotensive active peptides |
| US4626545A (en) * | 1984-08-27 | 1986-12-02 | Merck & Co., Inc. | Amino acid derivatives as enzyme inhibitors |
| US4827016A (en) * | 1985-09-16 | 1989-05-02 | Morgan Lee R | Method and compounds for reducing dermal inflammations |
| US5231084A (en) * | 1986-03-27 | 1993-07-27 | Hoechst Aktiengesellschaft | Compounds having a cognition adjuvant action, agents containing them, and the use thereof for the treatment and prophylaxis of cognitive dysfuncitons |
| US4765980A (en) * | 1986-04-28 | 1988-08-23 | International Minerals & Chemical Corp. | Stabilized porcine growth hormone |
| US5686422A (en) * | 1987-03-17 | 1997-11-11 | Research Corporation Technologies, Inc. | Synthetic inhibitors of mammalian collagenase |
| DE3889726T2 (de) * | 1987-03-17 | 1994-10-13 | Res Corp Technologies Inc | Synthetische inhibitoren von säugetier-collagenase. |
| US5401880A (en) * | 1987-06-04 | 1995-03-28 | Oculon Corporation | Chemical prevention or reversal of cataract by phase separation inhibitors |
| US5025001A (en) * | 1988-06-15 | 1991-06-18 | Brigham And Women's Hospital | S-nitroso derivatives of ACE inhibitors and the use thereof |
| US5356890A (en) * | 1988-06-15 | 1994-10-18 | Brigham And Women's Hospital | S-nitroso derivatives of ace inhibitors and the use thereof |
| US5187183A (en) * | 1988-06-15 | 1993-02-16 | Brigham & Women's Hospital | S-nitroso derivatives of ACE inhibitors and the use thereof |
| US5002964A (en) * | 1988-06-15 | 1991-03-26 | Brigham & Women's Hospital | S-nitrosocaptopril compounds and the use thereof |
| FR2664269B1 (fr) * | 1990-07-05 | 1992-10-02 | Roussel Uclaf | Nouveaux derives n-substitues d'alpha-mercapto alkylamines, leur procede de preparation, leur application a titre de medicaments et les compositions les renfermant. |
| TW197945B (da) * | 1990-11-27 | 1993-01-11 | Hoechst Ag | |
| US5106982A (en) * | 1990-12-10 | 1992-04-21 | E. R. Squibb & Sons, Inc. | Piperidinyl carbonyl derivatives |
| CZ288436B6 (en) | 1994-10-05 | 2001-06-13 | Darwin Discovery Ltd | Peptidyl derivatives, their therapeutic use as inhibitors of metalloproteinases and pharmaceutical preparation in which they are comprised |
| US5662991A (en) † | 1994-12-23 | 1997-09-02 | Gentex Corporation | Laminated biocidal fabric |
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| WO2004050620A2 (en) * | 2002-12-03 | 2004-06-17 | Enobia Pharma | Derivatives of succinic and glutaric acids and analogs thereof useful as inhibitors of phex |
| US7589233B2 (en) * | 2003-07-29 | 2009-09-15 | Signature R&D Holdings, Llc | L-Threonine derivatives of high therapeutic index |
| DE102005054700B4 (de) * | 2005-11-16 | 2009-01-08 | Imtm Gmbh | Neue duale Peptidase-Inhibitoren als Prodrugs zur Therapie von entzündlichen und anderen Erkrankungen |
| US7858611B2 (en) * | 2006-05-09 | 2010-12-28 | Braincells Inc. | Neurogenesis by modulating angiotensin |
| AU2007249399A1 (en) | 2006-05-09 | 2007-11-22 | Braincells, Inc. | Neurogenesis by modulating angiotensin |
| US11229746B2 (en) | 2006-06-22 | 2022-01-25 | Excelsior Medical Corporation | Antiseptic cap |
| US9259535B2 (en) | 2006-06-22 | 2016-02-16 | Excelsior Medical Corporation | Antiseptic cap equipped syringe |
| US10426750B1 (en) | 2007-09-18 | 2019-10-01 | Thermolife International, Llc | Amino acid supplement formulations |
| US8466187B2 (en) | 2007-09-18 | 2013-06-18 | Thermolife International, Llc | Amino acid compositions |
| US10646508B1 (en) | 2007-09-18 | 2020-05-12 | Thermolife International, Llc | Method of safely administering nitrate dietary supplements and compositions |
| US7777074B2 (en) | 2007-09-18 | 2010-08-17 | Thermolife International, Llc | Amino acid compounds |
| US8455531B2 (en) | 2007-09-18 | 2013-06-04 | Thermolife International, Llc | Amino acid compositions |
| US10435356B1 (en) | 2007-09-18 | 2019-10-08 | Thermolife International, Llc | Amino acid compositions |
| US8569368B2 (en) | 2007-09-18 | 2013-10-29 | Thermolife International, Llc | Amino acid compounds |
| US8569369B2 (en) | 2007-09-18 | 2013-10-29 | Thermolife International, Llc | Amino acid compounds |
| US9078992B2 (en) | 2008-10-27 | 2015-07-14 | Pursuit Vascular, Inc. | Medical device for applying antimicrobial to proximal end of catheter |
| EP2696865B1 (en) | 2011-04-13 | 2016-12-21 | Thermolife International, LLC | N-acetyl beta alanine methods of use |
| US10166381B2 (en) | 2011-05-23 | 2019-01-01 | Excelsior Medical Corporation | Antiseptic cap |
| CA2841832C (en) | 2011-07-12 | 2019-06-04 | Icu Medical, Inc. | Device for delivery of antimicrobial agent into a trans-dermal catheter |
| CA2945406C (en) | 2014-05-02 | 2022-10-18 | Excelsior Medical Corporation | Strip package for antiseptic cap |
| EP3294404B1 (en) | 2015-05-08 | 2025-06-11 | ICU Medical, Inc. | Medical connectors configured to receive emitters of therapeutic agents |
| CA3040277C (en) | 2016-10-14 | 2025-08-12 | Icu Medical, Inc. | DISINFECTANT CAPS FOR MEDICAL FITTINGS |
| WO2018204206A2 (en) | 2017-05-01 | 2018-11-08 | Icu Medical, Inc. | Medical fluid connectors and methods for providing additives in medical fluid lines |
| US11541220B2 (en) | 2018-11-07 | 2023-01-03 | Icu Medical, Inc. | Needleless connector with antimicrobial properties |
| US11517732B2 (en) | 2018-11-07 | 2022-12-06 | Icu Medical, Inc. | Syringe with antimicrobial properties |
| US11400195B2 (en) | 2018-11-07 | 2022-08-02 | Icu Medical, Inc. | Peritoneal dialysis transfer set with antimicrobial properties |
| US11534595B2 (en) | 2018-11-07 | 2022-12-27 | Icu Medical, Inc. | Device for delivering an antimicrobial composition into an infusion device |
| US11541221B2 (en) | 2018-11-07 | 2023-01-03 | Icu Medical, Inc. | Tubing set with antimicrobial properties |
| AU2019384564B2 (en) | 2018-11-21 | 2023-11-23 | Icu Medical, Inc. | Antimicrobial device comprising a cap with ring and insert |
| US11865139B2 (en) | 2020-11-12 | 2024-01-09 | Thermolife International, Llc | Method of treating migraines and headaches |
| US12156886B2 (en) | 2020-11-12 | 2024-12-03 | Thermolife International, Llc | Methods of increasing blood oxygen saturation |
| CA3204371A1 (en) | 2020-12-07 | 2022-06-16 | Icu Medical, Inc. | Peritoneal dialysis caps, systems and methods |
| IL315206A (en) | 2021-02-11 | 2024-10-01 | Thermolife Int Llc | A method of administering nitric oxide gas |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799918A (en) * | 1972-04-26 | 1974-03-26 | Searle & Co | Alkyl esters of alpha-aspartyl alpha-alkyl aliphatic amino acid dipeptides |
| US3959519A (en) * | 1972-05-09 | 1976-05-25 | E. I. Du Pont De Nemours And Company | Fortification of food materials with a methionine source |
| CA1009252A (en) * | 1972-10-03 | 1977-04-26 | Santen Pharmaceutical Co. | N-(mercaptoacyl) aminoacids |
| US3857951A (en) * | 1973-09-14 | 1974-12-31 | Cassenne Lab Sa | Use of 2-mercaptopropionylglycine and its alkali metal salts in treating respiratory diseases |
| JPS5124490A (en) * | 1974-08-23 | 1976-02-27 | Komatsu Mfg Co Ltd | Shirinda nyoru ichigime sochi |
| US3952115A (en) * | 1975-04-02 | 1976-04-20 | The Procter & Gamble Company | Fortification of foodstuffs with N-acyl derivatives of sulfur-containing L-amino acid esters |
| US4064235A (en) * | 1975-08-21 | 1977-12-20 | Eisai Co., Ltd. | Dopamine derivative compounds, preparation thereof and medicine containing same |
| US4052511A (en) * | 1976-02-13 | 1977-10-04 | E. R. Squibb & Sons, Inc. | Carboxyacylproline derivatives |
| US4046889A (en) * | 1976-02-13 | 1977-09-06 | E. R. Squibb & Sons, Inc. | Azetidine-2-carboxylic acid derivatives |
| AU509899B2 (en) * | 1976-02-13 | 1980-05-29 | E.R. Squibb & Sons, Inc. | Proline derivatives and related compounds |
| US4105789A (en) * | 1976-05-10 | 1978-08-08 | E. R. Squibb & Sons, Inc. | Carboxyalkylacylamino acids |
| US4053651A (en) * | 1976-05-10 | 1977-10-11 | E. R. Squibb & Sons, Inc. | Compounds and method for alleviating angiotensin related hypertension |
| US4024286A (en) * | 1976-05-17 | 1977-05-17 | Miles Laboratories, Inc. | Fortification of foodstuffs with C-terminal amino acid substituted methionine dipeptides |
| US4091024A (en) * | 1976-12-03 | 1978-05-23 | E. R. Squibb & Sons, Inc. | Pyrrolidine and piperidine-2-carboxylic acid derivatives |
| US4116962A (en) * | 1976-12-03 | 1978-09-26 | E. R. Squibb & Sons, Inc. | Pyrrolidine and piperidine-2-carboxylic acid derivatives |
-
1977
- 1977-01-17 US US05/759,685 patent/US4113715A/en not_active Expired - Lifetime
- 1977-10-31 US US05/846,645 patent/US4129571A/en not_active Expired - Lifetime
- 1977-10-31 US US05/846,738 patent/US4146611A/en not_active Expired - Lifetime
-
1978
- 1978-01-13 CA CA294,939A patent/CA1132136A/en not_active Expired
- 1978-01-13 GB GB1443/78A patent/GB1600461A/en not_active Expired
- 1978-01-13 DK DK16978A patent/DK149594C/da active
- 1978-01-13 FR FR7801000A patent/FR2377374A1/fr active Granted
- 1978-01-16 NO NO780151A patent/NO150397C/no unknown
- 1978-01-16 HU HU78SU964A patent/HU180529B/hu not_active IP Right Cessation
- 1978-01-16 AU AU32440/78A patent/AU518282B2/en not_active Expired
- 1978-01-16 SE SE7800503A patent/SE445352B/sv not_active IP Right Cessation
- 1978-01-16 CH CH42078A patent/CH632991A5/de not_active IP Right Cessation
- 1978-01-16 IE IE94/78A patent/IE46364B1/en not_active IP Right Cessation
- 1978-01-16 BE BE184354A patent/BE862944A/xx not_active IP Right Cessation
- 1978-01-17 DE DE19782801911 patent/DE2801911A1/de active Granted
- 1978-01-17 NL NL7800536A patent/NL7800536A/xx not_active Application Discontinuation
- 1978-01-17 JP JP415978A patent/JPS5390218A/ja active Granted
- 1978-06-26 US US05/919,201 patent/US4156786A/en not_active Expired - Lifetime
- 1978-06-28 US US05/919,880 patent/US4154946A/en not_active Expired - Lifetime
- 1978-06-29 US US05/920,590 patent/US4154960A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6126781B2 (da) | 1986-06-21 |
| NO150397C (no) | 1984-10-10 |
| BE862944A (fr) | 1978-05-16 |
| IE46364B1 (en) | 1983-05-18 |
| DE2801911C2 (da) | 1991-03-21 |
| US4129571A (en) | 1978-12-12 |
| NL7800536A (nl) | 1978-07-19 |
| US4156786A (en) | 1979-05-29 |
| FR2377374A1 (fr) | 1978-08-11 |
| AU518282B2 (en) | 1981-09-24 |
| IE780094L (en) | 1978-07-17 |
| JPS5390218A (en) | 1978-08-08 |
| NO780151L (no) | 1978-07-18 |
| US4146611A (en) | 1979-03-27 |
| US4154946A (en) | 1979-05-15 |
| SE445352B (sv) | 1986-06-16 |
| DK16978A (da) | 1978-07-18 |
| US4113715A (en) | 1978-09-12 |
| NO150397B (no) | 1984-07-02 |
| DE2801911A1 (de) | 1978-07-20 |
| AU3244078A (en) | 1980-02-21 |
| DK149594C (da) | 1987-03-16 |
| CH632991A5 (de) | 1982-11-15 |
| SE7800503L (sv) | 1978-07-18 |
| CA1132136A (en) | 1982-09-21 |
| FR2377374B1 (da) | 1981-06-19 |
| GB1600461A (en) | 1981-10-14 |
| HU180529B (en) | 1983-03-28 |
| US4154960A (en) | 1979-05-15 |
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