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The total synthesis of calcium atorvastatin
Luiz C Dias1, Adriano S Vieira, Eliezer J Barreiro
1Instituto de Química, Universidade Estadual de Campinas, UNICAMP, P.O. Box 6154, 13084-971 Campinas, SP, Brazil. ldias@iqm.unicamp.br.
Abstract:
A practical and convergent asymmetric route to calcium atorvastatin (1) is reported. The synthesis of calcium atorvastatin (1) was performed using the remote 1,5-anti asymmetric induction in the boron-mediated aldol reaction of β-alkoxy methylketone (4) with pyrrolic aldehyde (3) as a key step. Calcium atorvastatin was obtained from aldehyde (3) after 6 steps, with a 41% overall yield.
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