Process for preparation of 6-aminopenicillanic acid derivatives

Details Process for preparation of 6-aminopenicillanic acid derivatives Process for preparation of 6-aminopenicillanic acid derivatives

1974-02-15

1978-02-07

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603067C, 424271, C07D49904

Patent

active

040726762

ABSTRACT:
A process for the preparation of 6-aminopenicillanic acid is described which comprises reacting a natural penicillin with a phosphorus halide to protect the carboxyl group of the natural penicillin and thereafter reacting the protected penicillin with an acid halide to form the corresponding penicillin imino halide, reacting the imino halide with an alcohol to form an imino ether and subsequent hydrolysis or alcoholysis to 6-aminopenicillanic acid.

REFERENCES:
patent: 3809699 (1974-05-01), Ishimaru

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