摘要:
Quinine, quinidine, their antipodes or racemates and derivatives thereof, are prepared by (a) cyclizing the correspondingly substituted 4-(3-(1-chloro-3(R)-alkyl(or alkenyl)-4(R)piperidyl)-1-oxopropyl)quinolines, antipodes or racemates thereof, to the corresponding 4-(5(R)-alkyl(or alkenyl)-4(S)quinuclidin-2(S) or 2(R)-ylcarbonyl)quinolines, antipodes or racemates thereof; and (b) stereoselectively reducing the products of step (a) to Alpha (S)-(5(R)-alkyl(or alkenyl)-4(S)quinuclidin-2(R)-yl)-4-quinolinemethanols, antipodes or racemates thereof, and Alpha (R)-(5(R)-alkyl(or alkenyl)-4(S)-quinuclidin2(S)-yl)-4-quinolinemethanols, antipodes or racemates thereof. Various intermediates and the end products are useful antimalarial and antiarrhythmic agents.
摘要:
6-HALO-4-OXA-3-OXO-ANDROSTANES ARE PREPARED VIA HALOGENATION OF 3,5-SECO-A-NOR-3-OIC ACIDS FOLLOWED BY LACTONIZATION. END-PRODUCTS ARE USEFUL AS ANTI-ANDROGENS.
摘要:
The preparation of quinine, quinidine, isomers and derivatives thereof from the correspondingly substituted 4-methylquinoline and 1-acyl(or 1-H)-3-vinyl(or lower alkyl)-4-piperidine acetic acid esters (or acetaldehyde) through alternative series of reaction steps which comprise, condensation, halogenation, deacylation, reduction, cyclization and hydroxylation, is described. Also described is the preparation of 1-acyl(or 1-H)-3vinyl-4-piperidineacetic acids and esters thereof and 1-acyl-3vinyl-4-piperidineacetaldehyde utilizing the corresponding 7acyldecahydro-2H-pyrido(3,4-d)azepin-2-one, prepared from 2-acyl1,3,4,7,8,8a-hexahydro-6(2H)-isoquinolone. The end products are useful as antimalarial and antiarrhythmic agents.
摘要:
Quinine, quinidine and analogs thereof, are prepared by reacting a 4-quinolyllithium compound with a 4,5-erthro-5-ethyl(or vinyl)quinuclidine-2 xi -carboxaldehyde or the corresponding quinuclidine-2-carboxylic acid alkyl ester. Also described, inter alia, is the preparation of a 4,5-erythro-5-ethyl(or vinyl)quinuclidine-2 xi -carboxaldehyde, and a 4,5-erythro-5-ethyl(or vinyl)-quinuclidine-2 xi -carboxylic acid and esters thereof. The end products are useeful as antimalarial and antiarrhythmic agents.
摘要:
The preparation of quinine, quinidine, isomers and derivatives thereof from the correspondingly substituted 4-methylquinoline and 1-acyl(or 1-H)-3-vinyl(or lower alkyl)-4-piperidine acetic acid esters (or acetaldehyde) through alternative series of reaction steps which comprise, condensation, halogenation, deacylation, reduction, cyclization and hydroxylation, is described. Also described is the preparation of 1-acyl(or 1-H)-3vinyl-4-piperidineacetic acids and esters thereof and 1-acyl-3vinyl-4-piperidineacetaldehyde utilizing the corresponding 7acyldecahydro-2H-pyrido(3,4-d)azepin-2-one, prepared from 2-acyl1,3,4,7,8,8a-hexahydro-6(2H)-isoquinolone. The end products are useful as antimalarial and antiarrhythmic agents.
摘要:
The preparation of quinine, quinidine, isomers and derivatives thereof from the correspondingly substituted 4-methylquinoline and 1-acyl(or 1-H)-3-vinyl(or lower alkyl)-4-piperidine acetic acid esters (or acetaldehyde) through alternative series of reaction steps which comprise, condensation, halogenation, deacylation, reduction, cyclization and hydroxylation, is described. Also described is the preparation of 1-acyl(or 1-H)-3vinyl-4-piperidineacetic acids and esters thereof and 1-acyl-3vinyl-4-piperidineacetaldehyde utilizing the corresponding 7acyldecahydro-2H-pyrido(3,4-d)azepin-2-one, prepared from 2-acyl1,3,4,7,8,8a-hexahydro-6(2H)-isoquinolone. The end products are useful as antimalarial and antiarrhythmic agents.
摘要:
6-HALO-4-OXA-3-OXO-ANDROSTANES ARE PREPARED VIA HALOGENTATION OF 3,5-SECO-A-NOR-3-OIC ACIDS FOLLOWED BY REDUCTION AND THEN LACTONIZATION. THE END-PRODUCTS ARE USEFUL AS ANTIANDROGENS. PARTICULARLY PREFERRED EMBODIMENTS, I.E., 6A-BROMO-17B-HYDROXY-17A-METHYL-4-OXA-ANDROSTAN-3ONE ARE USEFUL AS TOPICAL AGENTS AGAINST ACNE.
摘要:
4-ISOQUINOLONES BEARING A HALOGEN OR HYDROXY SUBSTITUENT ON THE PHENYL RING ARE DISCLOSED. THE COMPOUNDS ARE USEFUL AS BLOOD PRESSURE LOWERING AGENT AND AS INTERMEDIATES FOR 1,2,3,4-TETRAHYDROISOQUINOLINES USEFUL AS ANTIHYPERTENSIVE AGENTS.
摘要:
Quinine, quinidine and analogs thereof, are prepared by reacting a 4-quinolyllithium compound with a 4,5-erythro-5-ethyl(or vinyl)-quinuclidine-2 xi -carboxaldehyde or the corresponding quinuclidine-2-carboxylic acid alkyl ester. Also described, inter alia, is the preparation of a 4,5-erythro-5-ethyl(or vinyl)quinuclidine-2 xi -carboxaldehyde, and a 4,5-erythro-5-ethyl(or vinyl-quinuclidine-2 xi -carboxylic acid and esters thereof. The end products are useful as antimalarial and antiarrhythmic agents.