✦ LIBER ✦

Intramolecular condensation of steroidal 17α-formyl 17β-acetates: model studies on 19-norsteroids, and a route to 3-methoxy-19- nor-17α-pregna-1,3,5(10).Triene 21,17-carbolactone

✍ Scribed by James R Bull; Lynne M Steer

Book ID: 108371862
Publisher: Elsevier Science
Year: 1990
Tongue: French
Weight: 872 KB
Volume: 46
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)87846-7

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Intramolecular condensation of steroidal

Intramolecular condensation of steroidal 17α-formyl-17β-acetates: Synthesis of 14-hydroxymethyl-3-oxo-19-nor-17α-pregn-4-ene-21,17-carbolactone

✍ James R Bull; Lynne M Steer 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 193 KB

Intramolecular condensation of steroidal Ilfi-acetoxy-17a-carbaldehydes offers a synthetic route to 19-nor-17,17-spirofactones. A cycloaddition-mediated route to ring D modified 19-not-steroids has recently been described, 2 in which 17~-acetoxy-3-methoxyestra-1,3,5(10)-triene-14,l7a-dicarbaldehyde(

ChemInform Abstract: N-Butyl-N-methyl-11

ChemInform Abstract: N-Butyl-N-methyl-11- (3′-hydroxy-21′,17′-carbolactone-19′-nor-17′α-pregna-1′,3′,5′ (10′)-trien-7′α-yl)-undecanamide: An Inhibitor of Type 2 17β-Hydroxysteroid Dehydrogenase that Does Not Have Oestrogenic or Androgenic Activity.

✍ Kay-Mane Sam; Fernand Labrie; Donald Poirier 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 1 views

A Concise Route to 19-Nor-10-azasteroids

A Concise Route to 19-Nor-10-azasteroids, a New Class of Steroid 5α-Reductase Inhibitors. 3. 1 Synthesis of (+)-19-Nor-10-azatestosterone and (+)-17β-(Acetyloxy)-(5β)-10-azaestr-1-en-3-one

✍ Guarna, Antonio; Occhiato, Ernesto G.; Machetti, Fabrizio; Scarpi, Dina 📂 Article 📅 1998 🏛 American Chemical Society 🌐 English ⚖ 113 KB

ChemInform Abstract: A Concise Route to

ChemInform Abstract: A Concise Route to 19-Nor-10-azasteroids, a New Class of Steroid 5α-Reductase Inhibitors. Part 3. Synthesis of (+)-19-Nor-10-azatestosterone and (+)-17β-(Acetyloxy)-(5β)-10-azaestr-1-en-3-one.

✍ A. GUARNA; E. G. OCCHIATO; F. MACHETTI; D. SCARPI 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 43 KB 👁 2 views

A Concise Route to 19-Nor-10-azasteroids, a New Class of Steroid 5α-Reductase Inhibitors. Part 3. Synthesis of (+)-19-Nor-10azatestosterone and (+)-17β-(Acetyloxy)-(5β)-10-azaestr-1-en-3-one. -The title compounds are of interest, since 5α-reductase inhibitors (by reducing the level of dihydrotesto