Process for preparing 2.beta.-substituted-methylpenicillin deriv

Details Process for preparing 2.beta.-substituted-methylpenicillin deriv Process for preparing 2.beta.-substituted-methylpenicillin deriv

1989-06-26

1990-06-12

Lone, Werren B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540304, 540315, 540338, C07D49904

Patent

active

049334441

ABSTRACT:
Disclosed is a process for preparing 2.beta.-substituted-methylpenicillin derivative of the formula ##STR1## wherein R is H or carboxyl protecting group, R.sub.1 is H or halo, R.sub.2 is H, lower alkyl, lower alkoxy, halogen, azido, lower alkylthio, phthalimide or a group --NHR.sub.3 (wherein R.sub.3 is H or acyl), and --N Y is an optionally substituted monocyclic or bicyclic heterocyclic group having 1 to 4 nitrogen atoms in the ring structure, the process comprising reacting a compound of the formula ##STR2## wherein X is Cl or Br, and R, R.sub.1 and R.sub.2 are as defined above with a heterocyclic compound of the formula ##STR3## wherein --N Y is as defined above.

REFERENCES:
patent: 4529592 (1985-07-01), Micetich et al.
patent: 4562073 (1985-12-01), Micetich et al.
patent: 4668514 (1987-05-01), Micetich et al.

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