Efficient and Simple Synthesis of Substituted 3??Phenyl??7??methoxybenzopyrans as Pseudo??Vitamin??D3 Analogs

A Gupta, S Ray

Index: Gupta, Atul; Ray, Suprabhat Synthetic Communications, 2007 , vol. 37, # 18 p. 3119 - 3126

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Abstract

Vitamin D 3 has a highly flexible side chain and triene sterol structure (1) (Fig. 1) with 1α,25??hydroxy groups, required for efficient gene transcription, leading to its calcemic and antiproliferative activities.1–5 View all references. The stereochemistry of vitamin??D 3 side chain also plays an