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Stereoselective synthesis of (24R and 24S) 5β-cholestane-3α,7α,12α,24,25-pentols and (25R and 25S) 5β-cholestane 3α,7α,12α,25,26-pentols using a modified osmium-catalyzed Sharpless asymmetric dihydroxylation process

✍ Scribed by B. Dayal; G. Salen; J. Padia; S. Shefer; G.S. Tint; T.H. Williams; V. Toome; G. Sasso

Book ID
107737295
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
544 KB
Volume
61
Category
Article
ISSN
0009-3084

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📜 SIMILAR VOLUMES

Bile alcohol glucuronides: regioselectiv
Bile alcohol glucuronides: regioselective O-glucuronidation of 5β-cholestane-3α,7α,12α,25-tetrol and 24-nor-5β-cholestane-3α,7α,12α,25-tetrol
✍ Bishambar Dayal; Gerald Salen; Janak Padia; Sarah Shefer; George S. Tint; Gino S 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 746 KB

## ABSTRAm A facile and regiocontrolled procedure for the preparation of S~-cholestane-3a,7c,l2~,25-tetrol-3-O-fi-o-glucuronide and its corresponding C-26 analogue is described. The method involves direct coupling of bile alcohols, namely, 5/3-cholestane-3rY,7~,12a,25-tetrol and 24-nor-Sp-cholesta