Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1989-11-09
1993-02-02
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
560 51, 560 53, 562459, 562463, 564251, C07D23728
Patent
active
051838915
ABSTRACT:
A method for the preparation of compounds of the formula ##STR1## wherein X represents a group of the formula OR.sub.1 or NR.sub.1 R.sub.2, wherein R.sub.1 and R.sub.2 independently represent H or an organic group that forms a stable covalent bond with the N or O of said X; Y is H or an organic group that forms a stable ester with the adjacent COO group; R is an alkyl or aryl group optionally substituted with one or more stable organic substituents; each R.sub.3 independently represents a stable organic group; and n is an integer from 0 to 3;
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Fang Lawrence
Guilford William J.
Labovitz Jeffrey
Liang Yi
Bernhardt E.
Orsan
Orsem
Shah Mukund J.
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