Showing papers on "Benzopyrans published in 1975"
19 citations
Patent•
17 Jun 1975TL;DR: In this paper, a method for the control of helminths in homothermic domestic and farm animals by administering to said animals on anthelmintically effective amount of a benzopyran compound was described.
Abstract: This invention relates to a method for the control of helminths in homothermic domestic and farm animals by administering to said animals on anthelmintically effective amount of a benzopyran compound.
4 citations
Patent•
09 Jul 1975
TL;DR: In this paper, 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56
Abstract: 1,2,3,4-Tetrahydrocyclopenta[c][1]benzopyrans of the formulae ##STR1## wherein R is a lower alkyl group having 1 to 5 carbons, R1 is hydrogen or a lower alkyl group having 1 to 5 carbons, R2 is a lower alkyl group and R3 is an alkyl group having 1 to 20 carbon atoms, a phenyl-lower alkyl group or a cycloalkyl-lower alkyl group. The compounds have anti-hypertensive, antidepressant, analgesic, anticonvulsant, anti-anxiety, sedative-hypnotic and tranquilizing activity in animals.
3 citations
Patent•
09 Jul 1975
TL;DR: In this article, the compounds have anti-hypertensive, antidepressant, analgesic, anticonvulsant, anti-anxiety and tranquilizing activity in animals, and anti-malarial properties in animals.
Abstract: 1,2,3,4-Tetrahydrocyclopenta[c] [1]benzopyrans of the formulae ##SPC1## Wherein R is a lower alkyl group having 1 to 5 carbons, R 1 is hydrogen or a lower alkyl group having 1 to 5 carbons, R 2 is a lower alkyl group and R 3 is an alkyl group having 1 to 20 carbon atoms, a phenyl-lower alkyl group or a cycloalkyl-lower alkyl group. The compounds have anti-hypertensive, antidepressant, analgesic, anticonvulsant, anti-anxiety and tranquilizing activity in animals.
1 citations
Patent•
29 Jul 1975TL;DR: In this paper, a stereo-specific total synthesis of steroidal materials is described, where 7-Substituted 3-oxo-1-heptenes or variants thereof are reacted with 2-alkylcycloalkane-1,3-diones yielding 3-substitized 6a beta -alkyl-cyclopenta[f] [l] benzopyrans or naphtho [2,1-b] pyrans.
Abstract: Stereo-specific total synthesis of steroidal materials. 7-Substituted 3-oxo-1-heptenes or variants thereof are reacted with 2-alkylcycloalkane-1,3-diones yielding 3-substituted 6a beta -alkyl-cyclopenta[f] [l] benzopyrans or naphtho [2,1-b] pyrans. These are then subjected to a selective catalytic hydrogenation followed by an introduction of a hydroxy, alkoxy or acyloxy group at the 4a-position to produce a 3-substituted 6a beta ,6a-hydroxy, alkoxy or acyloxy perhydrocyclopenta [f] [l] benzopyran or perhydro-naphtho [2,1-b] pyran. These latter compounds are then converted into 4- or 5-(3-oxoalkyl)perhydroindene-5-ones or perhydronaphthalene-6-ones which in turn can be converted to known steroidal materials by known methods.