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9-Hydroxydibenzo[b,d]pyrans and intermediates therefore
   
Document Number
US Patent 4243674
Issued Date
January 6, 1981
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Abstract
9-Hydroxydibenzo[b,d]pyrans useful as analgesics, hypotensives, immunosuppressants, tranquilizers; as anti-secretory and anti-anxiety drugs; intermediates therefor and derivatives thereof having the formulae ##STR1## wherein R is hydrogen or alkanoyl having from one to five carbon atoms; R.sub.1 is hydrogen, alkanoyl having from one to five carbon atoms or --CO--(CH.sub.2).sub.p --NR.sub.2 R.sub.3 wherein p is 0 or an integer from 1 to 4; each of R.sub.2 and R.sub.3 when taken individually is hydrogen or alkyl having from one to four carbon atoms; R.sub.2 and R.sub.3 when taken together with the nitrogen to which they are attached form a 5- or 6-membered heterocyclic ring selected from piperidino, pyrrolo, pyrrolidino, morpholino and N-alkylpiperazino having from one to four carbon atoms in the alkyl group; each of R.sub.4 and R.sub.5 is hydrogen, methyl or ethyl; R.sub.0 is oxo or alkylenedioxy having from two to four carbon atoms; Z is (a) alkylene having from one to nine carbon atoms; (b) --(alk.sub.1).sub.m --X--(alk.sub.2).sub.n -- wherein each of (alk.sub.1) and (alk.sub.2) has from 1 to 9 carbon atoms, with the proviso that the summation of carbon atoms in (alk.sub.1) plus (alk.sub.2) is not greater than 9; each of m and n is 0 or 1; X is O, S, SO or SO.sub.2 ; and W is methyl, phenyl, p-chlorophenyl, p-fluorophenyl, pyridyl, piperidyl, cycloalkyl having from 3 to 7 carbon atoms, or monosubstituted cycloalkyl wherein the substituent is phenyl, p-chlorophenyl or p-fluorophenyl; with the proviso that when W is methyl, Z is --(alk.sub.1).sub.m --X--(alk.sub.2).sub.n --.
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9-Hydroxydibenzo[b,d]pyrans and intermediates therefore - US Patent 4243674 Drawing
Drawing from US Patent 4243674
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Number of Claims:
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Owner
Pfizer Inc. (New York, NY)
Published
January 6, 1981
Application Number
05/914,664
Filed
June 12, 1978
US Classification
514/454   549/391
Int'l Classification
C07C   35/00   (20060101)   C07C   49/255   (20060101)   C07C   35/50   (20060101)   C07C   49/00   (20060101)   C07C   43/00   (20060101)   C07C   43/205   (20060101)   C07D   303/22   (20060101)   C07C   45/00   (20060101)   C07D   303/00   (20060101)   C07C   45/45   (20060101)   C07D   311/00   (20060101)   C07D   311/80   (20060101)  
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Parent Case
CROSS-REFERENCE TO RELATED APPLICATION This application is a continuation of application Ser. No. 819,471 filed July 27, 1977, now U.S. Pat. No. 4,143,139 granted Mar. 6, 1979, which in turn is a continuation of application Ser. No. 730,672 filed Oct. 7, 1976 and now abandoned which in turn is a continuation-in-part of application Ser. No. 628,210 filed Nov. 3, 1975 and now abandoned.
USPTO Field of Search
260/345.3   424/283  
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Claims
Description
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