Reactive asymmetrical dicarboxylic acid esters and reagents for

Details Reactive asymmetrical dicarboxylic acid esters and reagents for Reactive asymmetrical dicarboxylic acid esters and reagents for

1978-03-06

1981-08-04

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2601125R, 260121, 2603264, 2604654, 536115, 536120, 546248, 546294, 548259, 560142, 560145, 560146, C07D20948

Patent

active

042821517

ABSTRACT:
New reactive asymmetrical dicarboxylic acid ester compounds of the formula ##STR1## wherein R.sub.1 is an alkyl radical containing up to 3 carbon atoms or is a digoxin or digitoxin residue, R.sub.2 and R.sub.3, which may be the same or different, are alkoxy radicals containing up to 3 carbon atoms or together represent an oxygen atom, X is a cyanomethoxy, succinimide-N-oxy, N-methyl-pyridiniumoxy, 2,4-dinitrophenoxy, 2,4,5-trichlorophenoxy, pentachlorophenoxy, phenylthio, p-nitrophenoxy, n-nitrophenylthio, piperidyl-N-oxy, phthalimido-N-oxy or benztriazol-N-oxy radical and n is 2, 3, 4 or 5, are useful for the preparation of reagents for the investigation of cardiac glycosides (Digitalis glycosides).

REFERENCES:
patent: 3541084 (1970-11-01), Hagitani et al.

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