摘要:
The present invention relates to a novel process for the preparation of ethyl 3S-[[4-[[4-(aminoiminomethyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate and pharmaceutically acceptable acid addition salt thereof which comprises treating (trimethylsilyl)acetylene sequentially with n-butyllithium and 4-formylmorpholine followed by acid hydrolysis to give 3-(trimethylsilyl)-2-propynal; treating 3-(trimethylsilyl)-2-propynal with lithium bis(trimethylsilyl)amide to give in situ N,3-bis(trimethylsilyl)-2-propyn-1-imine; condensation of N,3-bis(trimethylsilyl)-2-propyn-1-imine with lithium t-butyl acetate to give (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; treating (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate- with p-toluenesulfonic acid to give (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate, mono p-toluenesulfonic acid salt, treatment of resulting salt with ethanol in the presence of p-toluenesulfonic acid to give (.+-.)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; desilylation of (.+-.)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate to give in situ (.+-.)ethyl 3-amino-4-pentynoate; resolution of (.+-.)ethyl 3-amino-4-pentynoate using (R)-(-)-mandelic acid and treatment of the resolved product with gaseous hydrochloric acid to give ethyl 3S-amino-4-pentynoate, monohydrochloride; coupling the ethyl 3S-amino-4-pentynoate, monohydrochloride to 4-[[4-(aminoiminomethyl)phenyl]amino]-4-oxobutanoic acid, monohydrochloride in the presence of isobutyl chloroformate and N-methylmorpholine to give ethyl 3S-[[4-[[4-(aminoiminomethyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate, monohydrochloride.
摘要:
The present invention provides substituted dibenzoxazepine compounds of Formula I: ##STR1## which are opioid agonists which are useful as analgesic agents for the treatment of pain, pharmaceutical compositions comprising a therapeutically-effective amount of a compound of Formula I in combination with a pharmaceutically-acceptable carrier, and a method for eliminating or ameliorating pain in an animal comprising administering a therapeutically-effective amount of a compound of Formula I to the animal.
摘要:
The invention relates to novel substituted tyrosyl alanine dipeptide amides of the formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof wherein R.sup.1 is hydrogen, lower alkyl, hydroxy, --OCO.sub.2 lower alkyl, lower alkoxy, --O(CH.sub.2).sub.n --phenyl with the phenyl optionally substituted by halogen, --NO.sub.2, --CN, --NH.sub.2 or lower alkyl wherein n is 1 to 4; R.sup.2 and R.sup.3 represent lower alkyl, halogen, or lower alkoxy, or either one of R.sup.2 or R.sup.3 is hydrogen and the other is lower alkyl, lower alkoxy or halogen; R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 may be the same or different and represent hydrogen or lower alkyl; R.sup.10 is selected from the group consisting of--(ALK)Xwhere ALK represents alkylene, thioalkylene, oxyalkylene, having 1 to 5 carbon atoms; alkenylene and alkynylene having 2 to 4 carbon atoms; and X represents pyridyl, pyrimidinyl, 9H-fluoren-9-yl, diphenylmethyl, thienyl, carboxy, lower alkoxy carbonyl, substituted phenyl wherein the phenyl substituent is amino, hydroxy, halogen, nitro, methylenedioxy, lower alkyl, carboxy, lower alkoxycarbonyl, lower alkoxy, carboxamide, diloweralkylamino or X represents phenyl when ALK is not alkylene; or R.sup.10 is ##STR2## where p and q are independently 1 to 4; or R.sup.9 and R.sup.10 together with N is ##STR3## where r and t are independently 1 to 4;v represents an asymmetric carbon that may be racemic or have the D or L configuration;w represents an asymmetric carbon when R.sup.7 and R.sup.8 are not the same that may be racemic or have the D or L configuration.These compounds are useful as analgesic and/or antihypertensive compounds.
摘要:
This invention encompasses compounds of the formula ##STR1## and the pharmaceutically acceptable acid addition salts thereof wherein R.sup.1 is lower alkoxy or --O--(CH.sub.2).sub.n -phenyl where the phenyl may be optionally substituted with halogen, --NO.sub.2, --CN, --NH.sub.2 or lower alkyl wherein n is 1 to 4; R.sup.2 and R.sup.3 represent lower alkyl, halogen, lower alkoxy or one of R.sup.2 or R.sup.3 is hydrogen and the other is lower alkyl, lower alkoxy, or halogen; R.sup.4, R.sup.5, R.sup.7, R.sup.8, and R.sup.9 represent hydrogen or lower alkyl, R.sup.6 represents hydrogen, lower alkyl, lower alkenyl, or --(CH.sub.2).sub.m -cycloalkyl wherein m is 1 to 4 and the cycloalkyl has 3 to 8 carbon atoms; R.sup.10 is --(CH.sub.2).sub.p -phenyl wherein p is 1 to 4; and v represents an asymmetric carbon that may be racemic or have the D or L Configuration; w represents an asymmetric carbon when R.sup.7 and R.sup.8 are not the same that may be racemic or have the D or L configuration. This invention also encompasses compounds where R.sup.1 is hydroxy, provided at least one of R.sup.4, R.sup.5, R.sup.6 or R.sup.9 is lower alkyl. The compounds of this invention are useful analgesic agents.
摘要:
N.sup.6 -2-hydroxypropylaryl-substituted adenosines and adenines represented by the formula ##STR1## wherein R.sub.1 is selected from the group consisting of naphthyl, phenyl, substituted phenyl or biphenyl; and R.sub.2 is hydrogen or 1-.beta.-ribosyl; and the pharmaceutically acceptable salts thereof. The compounds are anti-hypertensive agents.
摘要:
The present invention is directed to a compound of formula I: or a pharmaceutically acceptable salt thereof, wherein: R2 is selected from the group consisting of H and methyl; and R2 is selected from the group consisting of H and methyl. The compounds possess useful nitric oxide synthetase inhibiting activity, and are expected to be useful in the treatment or prophylaxis of a disease or condition in which the synthesis or over synthesis of nitric oxide forms a contributory part.
摘要:
The present invention is directed to a compound of formula I: or a pharmaceutically acceptable salt thereof, wherein: R1 is selected from the group consisting of H and methyl; and R2 is selected from the group consisting of H and methyl. The compounds possess useful nitric oxide synthetase inhibiting activity, and are expected to be useful in the treatment or prophylaxis of a disease or condition in which the synthesis or over synthesis of nitric oxide forms a contributory part.