Preparation of astaxanthin novel intermediates therefor and the

Details Preparation of astaxanthin novel intermediates therefor and the Preparation of astaxanthin novel intermediates therefor and the

1994-06-27

1995-10-03

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31746

Patent

active

054553628

ABSTRACT:
Compounds of the formula I ##STR1## where R.sup.1 is H or C.sub.1 -C.sub.4 -alkyl,

REFERENCES:
patent: 4245109 (1981-01-01), Mayer et al.
patent: 4283559 (1981-08-01), Broger et al.
patent: 4585885 (1986-04-01), Bernhard et al.
patent: 5210314 (1993-05-01), Ernst et al.
Widner et al., Chem. Abst., 96:85791p (1982).
J. Org. Chem. 47 (1982) 2130-2134.

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