Process for preparing 4-desoxy-thiazolo[5,4-c]rifamycin derivati

Details Process for preparing 4-desoxy-thiazolo[5,4-c]rifamycin derivati Process for preparing 4-desoxy-thiazolo[5,4-c]rifamycin derivati

1979-10-29

1980-11-18

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424270, C07D 5120, A61K 31425

Patent

active

042344859

ABSTRACT:
Novel 4-desoxy-thiazole[5,4-c]rifamycin derivatives of formula I ##STR1## wherein R stands for a group --OR.sub.1, --NR.sub.2 R.sub.3 or --NHCOR.sub.4 wherein R.sub.1 represents alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl, R.sub.2 and R.sub.3 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl or R.sub.2 and R.sub.3 taken together with the adjacent nitrogen atom may represent a 5 to 7 membered heterocyclic ring and R.sub.4 is a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl; R.sub.5 is hydrogen or acetyl; and a process for preparing them.
The novel compounds have an antibacterial utility.

REFERENCES:
patent: 4042633 (1977-08-01), White et al.
patent: 4116957 (1978-09-01), Rossetti et al.
patent: 4129562 (1978-12-01), Cricchio
patent: 4144234 (1979-03-01), Cricchio

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