Analgesic 2-oxa-spirocyclic compounds

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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2603303, 2603309, 546 15, 549 13, 549 77, 549331, 514326, 514459, 514462, A61K 3134, A61K 3135, C07D30794, C07D31196

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active

045885915

ABSTRACT:
Analgesic 2-oxa-spirocyclic compounds of the formula ##STR1## where the wavy line bonds, p, n, m, A, q, X, Y, R, R.sub.1, R.sub.2 and E are as defined in the specification, e.g., trans-4-bromo-N-methyl-N-[7-(1-pyrrolidinyl)-2-oxaspiro[4.5]dec-8-yl]benza mide, and trans-3,4-dichloro-N-methyl-N-[7-(1-pyrrolidinyl)-2-oxaspiro[4.5]dec-8-yl] benzeneacetamide, and acid addition salts thereof. Pharmaceutical compositions and methods of using these compounds as analgesics are disclosed. Processes for preparing the class of compounds are also disclosed.

REFERENCES:
patent: 4065573 (1977-12-01), Lednicer
patent: 4098904 (1978-07-01), Szmuszkovicz
patent: 4145435 (1979-03-01), Szmuszkovicz
patent: 4156733 (1979-05-01), Szmuszkovicz
patent: 4212878 (1980-07-01), Lednicer
patent: 4359476 (1982-11-01), Kaplan et al.
patent: 4360531 (1982-11-01), McMillan et al.
patent: 4438130 (1984-03-01), Kaplan
J. Org. Chem., 28, 1388 (1963), by B. T. Gillis et al.

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