Process for the preparation of (8As,12AS,13AS)-decahydroisoquino

Details Process for the preparation of (8As,12AS,13AS)-decahydroisoquino Process for the preparation of (8As,12AS,13AS)-decahydroisoquino

1991-03-21

1993-07-27

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 70, 562401, 562402, C07D45503

Patent

active

052311813

ABSTRACT:
The invention provides a process for preparing single enantiomers of compounds represented by the formula: ##STR1## and chiral acid addition salts thereof; wherein: X and Y are independently hydrogen; lower alkyl; lower alkoxy; or halo; or X and Y taken together is methylenedioxy or ethylene-1,2-dioxy;
which includes reduction of a compound represented by the formula: ##STR2## to give a mixture of stereoisomers represented by the formula: ##STR3## wherein each wavy line independently represents a bond in either the .alpha. or .beta. position;

REFERENCES:
patent: 4791108 (1988-12-01), Clark
patent: 4886798 (1989-12-01), Clark
patent: 4956365 (1990-09-01), Clark et al.
patent: 4960891 (1990-10-01), Clark et al.
patent: 5049668 (1991-09-01), Wall et al.
Investigation on the Chemistry of Berbans, by Szabo et al., Nouv. J. Chimie, 4(3), 199-202 (1980).
New Annelation Reaction of Cyclic Schiff Bases, by Akhrem et al., Synthesis, (12) 996 (1980).

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