Zobrazeno 1 - 10
of 313
pro vyhledávání: '"K, Görlitzer"'
Publikováno v:
Die Pharmazie. 62(2)
2,5-Dichloro-4-methyl-benzo[c][2,7]naphthyridine (1) reacted with aromatic amines selectively by substitution at the 5-position to yield the amidines 2. The 4-aminophenol 2c could also be synthesized by cleavage of the ether 2b. The structure of 2c w
Publikováno v:
Die Pharmazie. 62(1)
The chloroimine 1a reacted with the novaldiamine-base to yield the 5-(2-methylpyrrolidinyl)-derivative 3. The 5-chloro-benzonaphthyridines 1 and 9 reacted with secondary aliphatic amines to give the amidines 5-8 and 10, while the aromatic amidines 11
Publikováno v:
Die Pharmazie. 61(12)
The 2,5-dichlorobenzo[c][2,7]naphthyridine 6 was synthesized starting from the 2-pyridone 1 in four or five steps, respectively. The 5-yl amine 7 and the 2,5-diyl amines 8 and 9 were isolated by the reaction of compound 6 with the novaldiamine base.
Publikováno v:
Die Pharmazie. 61(11)
The 4-aryl derivative 3, obtained by Suzuki cross coupling of the methyl 4-bromothiophene-3-carboxylate (2) with 2-nitrophenylboronic acid cyclizes under reductive conditions pH-dependant to yield the tricyclic hydroxamic acid 4 or the lactam 5. The
Publikováno v:
Die Pharmazie. 61(7)
The irreversible aromatase inhibitor exemestane (6) reacts with nitromethane and sodium ethanolate to yield the Michael adduct 9. The aldehyde 10 is obtained by Nef reaction of the nitro compound 9 and affords the 1,4-dihydropyridine (DHP) 11 by Hant
Publikováno v:
Die Pharmazie. 61(3)
The 8,8'-biquinoline-5,5'-diones 2A are formed by the erythroquine and thalleioquine reaction from the 6-methoxyquinolines 1 as model compounds. The red substances 2A react with hydrochloric acid to yield the yellow biquinolinedihydrochlorides 3. The
Publikováno v:
Die Pharmazie. 61(1)
The pyridone 1a reacts with POCl3/DMF to yield the title compound 2a. After irradiation of 2a the enolether 3 is isolated, as shown by an X-ray structure determination. The pyridine 4 obtained by dehydrogenation of 2a leads under reductive conditions
Publikováno v:
Die Pharmazie. 60(8)
The o-nitrobenzylidene acetoacetic esters 1 dimerize in the presence of BuLi or LDA to give the cyclohexenes 2 in poor yield. Two diastereomer of 2b were isolated, whose configuration is deduced by nmr-spectroscopic methods.
Publikováno v:
Die Pharmazie. 60(7)
The reaction of the 1,5-diketones 1 with acetic anhydride/acetic acid in the presence of zinc chloride yields the 4-aryl-4H-pyrans 2 as main products. The annulated lactone 3 and the cyclohexene derivatives 5 are isolated as by-products. The configur
Publikováno v:
Die Pharmazie. 60(4)
Colour reaction of chlorhexidine and proguanil with hypobromite The antimalarial agent proguanil reacts with hypobromite to yield the red coloured (E)-3-[(4-chlorophenyl)imino]-N-isopropyl-3H-1,2,4-triazol-5-amine (6B). The structure of 6B was proven