IL36101A - 5 or 6-substituted amino-2-(4'-thiazolyl)-benzimidazoles and their preparation - Google Patents

5 or 6-substituted amino-2-(4'-thiazolyl)-benzimidazoles and their preparation

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Publication number
IL36101A
IL36101A IL36101A IL3610171A IL36101A IL 36101 A IL36101 A IL 36101A IL 36101 A IL36101 A IL 36101A IL 3610171 A IL3610171 A IL 3610171A IL 36101 A IL36101 A IL 36101A
Authority
IL
Israel
Prior art keywords
loweralkyl
compound
derivatives
formula
alkoxy
Prior art date
Application number
IL36101A
Other languages
Hebrew (he)
Other versions
IL36101A0 (en
Original Assignee
Merck & Co Inc
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 Merck & Co Inc filed Critical Merck & Co Inc
Publication of IL36101A0 publication Critical patent/IL36101A0/en
Publication of IL36101A publication Critical patent/IL36101A/en

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  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (14)

1. Compounds having the formula: significations: -X represents oxygen or sulfur; ie in the 5-posltion, R2 represents (lower carbalkox )(lower alkoxy), aminoloweralkpxy containing from 2 to 6 oaron atoms in the ■•4* - - - -- _ alkoxy moiety and the E-loweraikyl, Ν,Η-diloweralkyl and triloweralkylaminoniuni halide derivatives thereof, phosphonolower-alkoxy and loweralkyl esters thereof, phoephatoloweralkoxy and loweralkyl esters thereof, loweralkylthioloweralkoxy and the sulfoxide and eulfone derivatives thereof, sulf loweralkoxy, C-amidinoloweralkoxy and M^ and - loweralkyl derivatives thereof, B-amidinoloweralkoxy vherein oe anld no moiety is derived from a lotieralfeanoic acid and the H-loweralkyl derivatives thereof, biguanidoloweralkoxy, guanldinoloweralkoxy and the fig, and 3SL loweralkyl derivatives 36101/3 thereof, aminoguanidinoloweralkoxy and the N* , N^, N2, and lower alkyl derivatives thereof, iraidazolinylaminolower-alkoxy and the 1-loweralkyl derivatives thereof, 1,4,5(6-tetrahydropyriraidinylaminoloweralkoxy and the 1-loweralkyl derivatives thereof, thiazolinylarainoloweralkoxy, imidaaolinoloweralkoxy and the 1-loweralkyl derivatives thereof, l,4,5,6-tetrahydropyrimidinoloweralk6xy and the 1-loweralkyl derivatives thereof, lowerelkanoyloxy, glycoayloxy, j-loweralkylphenacyloxy and j -loweralkoxyphenacyloxy; and non-toxio alkali metal, alkaline earth meatal and pharmaceutically acceptable amine salts and heavy metal oomplexes ^ , _ (lower csrbalkpxy) (lower alkoxy), thereof when Rg is ee ¾o.tyloworal¾
2. A compound of Claim 1 wherein X is oxygen and R2 is loweralkyl, loweralkanoyl, loweralkanoyloxy, loweralkox carbonyl or carbamoyl.
3. A compound of Claim 1 wherein X is oxygen and R2 is hydroxy, loweralkoxy, carboxylower-alkoxy, and loweralkyl esters thereof, aminoloweralkoxy containing from 2 to 6 carbon atoms in the alkoxy moiety and the N-loweralk l , Ν,Ν-diloweralkyl, and triloweralkyl-ammonium halide derivatives thereof, phosphonoloweralkox , and loweralkyl esters thereof, loweralkylthioloweralkoxy, and the sulfoxide, and sulfone derivatives thereof, sulfo-loweralkoxy, C-amidinoloweralkoxy and N^- and Hj-loweralkyl derivatives thereof, N-amidinoloweralkoxy wherein the amidino moiety is derived from a loweralkanoic acid and the N-loweralkyl derivatives thereof, biguanidolower- alkoxy, guanidinoloweralkoxy, and the N^, N2, and N3 loweralkyl derivatives thereof, aminoguanidinoloweralkoxy and the Ν' , N2, and N3 loweralkyl derivatives thereof, imidazolylaminoloweralkoxy and the l-loweralkyl derivatives thereof, 1,4, 5, 6-tetrahydropyrimidinylaminoloweralkoxy and the l-loweralkyl derivatives thereof, thiazolinylamino- loweralkoxy, imidazolinolower- -66- 36101/3 alkoxy and the 1-loweralkyl derivatives thereof, 1,4, 5*6" tetrahydropyrimidinoloweraikoxy and the l-loweralkyl derivatives thereof, lo eralkanoyloxy, glycosyloxy, £-loweralkylphenacyloxy and £-loweralkoxyphenacyloxy; and pharmaceutically acceptable salts thereof where the R2 group contains a, free hydrogen.
4. A compound of Claim 1 wherein X is oxygen and ¾2 is phosphonoloweralkoxy, phosphatoloweralkoxy, sulfoloweralkoxy, C-amidinolowe alkoxy, N-amidinolower- alkoxy (wherein the amidino moiety is derived from a loweralkanoic acid) biguanidoloweralkox , guanidinolowerr alkoxy, aminoguanidinoloweralkoxy, imidazolylaminolower- alkoxy; 1,4, 5,6-tetrahydropyrimidinylaminoloweralkoxy, 1,4,5 »6-tetrehydropyrimidinoloweralkoxy, and glycosyloxy, end the loweralkyl esters thereof. ,
5. Λ compound of Claim 1 wherein is oxygen and R2 is carboxyalkoxy, aminoalkoxy, N-alkylaminoalkoxy, Ν,Ν-dialkylaminoalkoxy, diaminoalkoxy, phosphonoloweralkoxy, eulfoloweralkoxy, C-amid noalkoxy, N-amidinoalkoxy, or guanidinoloweralkox .
6. ". A compound of Claim 1- wherein : is hydrogen, and is selected from loweralkoxy and phenyl.
7. A compound of Claim 6 which is 5- or 6- loweralkoxycarbonylamino-l-R2-2-(4'-thiazolyl)-benzimidazole.
8. The compo nd of Claim 7 which is 5- or 6- iaopropoxycarDonylamino-l-{2,-sulfoethoxy)-2-(4'.-thiazolyl)- benzimidazole. 56101/5
9. An anthelmintic compoeiton ha comprises a carrier vehicle having intimately dispersed therein an anthelmintically effective amount of a compound according to anyone of the preceding claims . (
10. The composition of Claim .9: wherein the carrier vehicle is in the form of a drench. 11· A process for preparing a compound of the formulaj wherein R^, R^, ^, and X are as defined in Claim 1, and R2 is loweralkoxy, carboxyloweralkoxy and · , loweralkyl esters thereof, phosphonoloweralkoxy and lower* alkyl esters thereof, loweralkylthioloweralkoxy, sulfo- loweralkoxy, guanidinoloweralkoxy, imidazolinoloweralkoxy and the 1-loweralkyl derivatives thereof, 1,4,5,6- tetrahydropyrimidinoloweralkoxy and the 1-loweralkyl derivatives thereof, loweralkanoyloxy, glycoeyloxy, jj-loweralkylphenacyloxy and jj- 13615 36101/2 loweralkoxyphenacylox , which comprises reacting a 1-hydroxy benzimidazole of the formula: wherein ^, R^, R^, and X are as defined in Claim 1, in the presence of a base with a 'member selected from the group consisting of a loweralkyl halide, a haloloweralkanoic acid, a loweralkyl ester of a halolower-. alkanoic acid, a haloloweralkylphosphonic acid, a halo-loweralkylsulfonic acid, a loweralkylthioloweralkyl halide, an imidazolinoloweralkyl halide, a 1-loweralkylimidazolino-loweralkyl halide, a 1, 4, 5, 6-tetrahydropyrimidinoloweralkyl halide, a loweralkanoic acid halide, an a-aminocarboxy- loweralkyl halide, a glycosyl halide, an a-halo-g- loweralkoxy acetophenone and an a-halo-£-loweralkyl acetophenone.
11. 1. Ί2.
12. A process for preparing a compound of the formula: wherein ^, R^, ^, and X are as defined in Claim 1, and R- is aminoloweralkoxy, which comprises reacting a compound of the formula: wherein R^, R^, R^, and X are as defined in Claim 1, and Rg is loweralkyl, with hydrazine hydrate. .1/6.
13. A process for preparing a compound of the formula : wherein 1 R3, 4 and X are as defined in Claim 1, and R2 is imidazolylaminoloweralkoxy and the 1-loweralkyl derivatives thereof, 1,4,5,6-tetrahydropyrimidinylamino-loweralkoxy and the 1-loweralkyl derivatives thereof, thiazolinylaminoloweralkoxy, thiaainylaminoloweiralkoxy , and guanidinoloweralkoxy, which comprises reacting a compound of the formula: wherein R^, R^, 4, and X are as defined in Claim 1 and Rg is loweralkyl with a compound of the formula: CH3 - S - R? wherein R? is a member selected from the group consisting of 2-imidazolino, l-loweralkyl-2-imidazolino, 2- (1,4, 5,6-tetrahydropyrimidino) , l-loweralkyl-2-(l,4,5,6-tetrahydro pyrimidino) , 2-thiazolino, | and amidino.
14. i A process for preparing a compound of the formula: wherein R^, ^, R4, and X are as defined in Claim 1, and R2 is biguanidoloweralkoxy, which comprises reacting a compound of the formula: wherein R^, R^, ^, and X are as defined in Claim 1, and Rg is loweralkyl, in an aqueous solvent with dicyandiamide . 15 · ί A process for preparing a compound of the formula: wherein ^, R^, R^, and X are as defined in Claim 1 and R2 is aminoguanidinoloweralkoxy, which comprises reacting a compound of the formula: wherein R^, R^/ and X are as defined in Claim 1 and Rg is loweralkyl, with nitroguanidine to produce the corresponding 1-nitroguanidinoloweralkoxy benzimidazole and reduc.ing the nitro group by catalytic reduction. ib i§-. The method for preparing an N-amidine compound of the formula: wherein R^, R^, R4, and X are as defined in Claim 1, Rg is loweralkyl; and Rg, Rg, and ^Q are members selected from the group consisting of hydrogen and loweralkyl, which comprises reacting an imino ether of the formula: ♦ 136 wherein R^, R^, R^, and X are as defined in Claim 1 and ^ is loweralkyl, in the presence of a catalytic quantity of hydrochloric acid with a compound of the formula : H - N - R10 wherein Rg and R1Q are defined above, n The method of preparing a N-amidino compound of the formula: wherein R^, R3, R4, and X are as defined in Claim lr Rg is loweralkyl, and R^2 and R^3 are members selected from the group consisting of hydrogen and loweralkyl, which comprises reacting a compound of the formula: wherein R. , R, , R. , and X are as defined in Claim 1, with a loweralkyl imino ester hydrochloride of the formula: wherein R1 is as defined above and R, A is loweralkyl. The method of preparing a C-amidino compound of the formula: wherein R^, R^, R^, and X are as defined in Claim 1, Rg is loweralkyl, and R^ and R^g are members selected from the group consisting of hydrogen and loweralkyl, which comprises reacting an imino ester hydrochloride of the formula: wherein ^, R^, R4, and X are as defined in Claim 1, with a compound of the formula: wherein R^,. and R^g are as described above. -2-2. The method of preparing a compound of the formula: wherein R^, R3, R4, and X are as defined in Claim 1, and R-. is phosphatoloweralkoxy which comprises reacting a compound of the formula: wherein ^, R^, ^, and X are as defined in Claim 1, Rg is loweralkyl, with orthophosphonic acid in the presence of phosphoric acid anhydride.
IL36101A 1970-03-05 1971-02-01 5 or 6-substituted amino-2-(4'-thiazolyl)-benzimidazoles and their preparation IL36101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1695770A 1970-03-05 1970-03-05

Publications (2)

Publication Number Publication Date
IL36101A0 IL36101A0 (en) 1971-04-28
IL36101A true IL36101A (en) 1976-02-29

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ID=21779932

Family Applications (1)

Application Number Title Priority Date Filing Date
IL36101A IL36101A (en) 1970-03-05 1971-02-01 5 or 6-substituted amino-2-(4'-thiazolyl)-benzimidazoles and their preparation

Country Status (10)

Country Link
AR (3) AR199179A1 (en)
CS (1) CS180571B2 (en)
ES (5) ES388211A1 (en)
IE (2) IE34938B1 (en)
IL (1) IL36101A (en)
NO (1) NO131932C (en)
SU (1) SU472504A3 (en)
YU (1) YU34895B (en)
ZA (1) ZA7164B (en)
ZM (1) ZM2571A1 (en)

Also Published As

Publication number Publication date
IE34938L (en) 1971-09-05
ES415483A1 (en) 1976-02-16
AR199177A1 (en) 1974-08-14
SU472504A3 (en) 1975-05-30
AR199178A1 (en) 1974-08-14
IE34939B1 (en) 1975-10-01
YU51571A (en) 1979-10-31
ZA7164B (en) 1972-08-30
CS180571B2 (en) 1978-01-31
IE34939L (en) 1971-09-05
AR199179A1 (en) 1974-08-14
ES415482A1 (en) 1976-11-16
YU34895B (en) 1980-04-30
IL36101A0 (en) 1971-04-28
NO131932C (en) 1975-08-27
ZM2571A1 (en) 1972-10-23
ES415481A1 (en) 1976-02-16
ES388211A1 (en) 1974-02-16
ES415480A1 (en) 1976-02-16
NO131932B (en) 1975-05-20
IE34938B1 (en) 1975-10-01

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