On The Protection of 3α-Hydroxy Group of A/B cis Steroids

Sharmila Banerjee Mukhopadhyay Department of Chemistry, Indian Institute of Technology, Powai, Bombay, 400 076, India

Umesh R. Desai Department of Chemistry, Indian Institute of Technology, Powai, Bombay, 400 076, India

Girish K. Trivedi Department of Chemistry, Indian Institute of Technology, Powai, Bombay, 400 076, India

Abstract

The difficulties encountered in the protection of 3α-hydroxy group of lithocholic acid 1 with three different types of protective groups are described. Only benzyl ether derivative was found to be suitable for synthetic transformations. The methodology for the synthesis of benzyl ethers of A/B cis steroids is reported for the first time.

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On The Protection of 3α-Hydroxy Group of A/B cis Steroids

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On The Protection of 3α-Hydroxy Group of A/B cis Steroids

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