METHOD FOR PREPARING 2,4-DIALKYLINDOLO[2,3-H]-1-OXAAZULENIUM CHLORIDES Russian patent published in 2005 - IPC

Abstract RU 2243971 C1

FIELD: organic chemistry, chemical technology, medicine.

SUBSTANCE: invention relates to a method for preparing new 2,4-dialkylindolo[2,3-h]-1-oxaazulenium chlorides of the general formula (I):

wherein Ia: R is -OCH3; R1 is CH3; Ib: R is hydrogen atom (H); R1 is CH3; Ic: R is -O-CH2-O-; R1 is CH3; Id: R is -O-CH2-CH2-O-; R1 is CH3; Ie: R is -OCH3; R1 is C2H5; If: -O-CH2-O-; R1 is C2H5. Method involves passing gaseous hydrogen chloride through solution of the corresponding 2-acetylaminoarylbis-(5-alkylfur-2-yl)methane of the formula (II):

in methanol at boiling for 80-90 min. Method provides preparing new tetracyclic derivatives eliciting the potential anticancer activity.

EFFECT: improved preparing method, valuable medicinal properties of compounds.

2 tbl, 5 ex

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RU 2 243 971 C1

Authors

Smirnov S.K.

Butin A.V.

Stroganova T.A.

Dates

2005-01-10Published

2003-07-07Filed