Results 161 to 170 of about 586 (172)

Δ^5,7-Steroids. XIII. Steroidal Cyclic Ketals. II^1,2 the Preparation of Δ^4,7-Pregnadiene-3,20-Dione and Δ^4,7-Pregnadiene-21-Ol-3,20-Dione-Acetate

The Journal of Organic Chemistry, 1952
Robert H. Lenhard, Rose Antonucci, Seymour Bernstein, Karl J. Sax, James H. Williams   +4 more
openaire   +2 more sources

Chemical Structure and Physico-chemical Properties of 17.ALPHA.-Acetoxy-6-chloro-2-oxa-4, 6-pregnadiene-3, 20-dione (TZP-4238).

, 1993
Itaya Toshihisa, Ryota Suzuki, Naoyuki Koizumi, Takegawa Shigehiro, Takeo Shibata   +4 more
openalex  

ChemInform Abstract: ONE‐STEP SYNTHESIS OF 17‐ACETOXY‐6‐METHYL‐4,6‐PREGNADIENE‐3,20‐DIONE (MEGESTROL ACETATE) FROM 17‐ACETOXY‐4‐PREGNENE‐3,20‐DIONE

, 1983
Klaus Annen, H. HOFMEISTER, Henry Laurent, Rudolf Wiechert   +3 more
openalex   +1 more source

The synthesis and reactivity of allylic alcohols and their derivatives: The synthesis of (Z)-3beta,16alpha-dihydroxy-5,17(20)-pregnadiene 3-pivaloate; the Mitsunobu reaction of 2-cyclohexenols; the europium(III) -catalyzed rearrangement of allylic methoxyacetates.

, 1991
Brian K. Shull
openalex  

Identification and Synthesis of 4,17-Pregnadien-20-ol-21-al-3,11-dione Acetate¹

Journal of the American Chemical Society, 1957
Frances Hoffman, Beyler Roger E
openaire   +2 more sources

Synthesis and in vitro activity of some epimeric 20α-hydroxy, 20-oxime and aziridine pregnene derivatives as inhibitors of human 17α-hydroxylase/c 17,20 -lyase and 5α-reductase

Bioorganic and Medicinal Chemistry, 1998
exaly  

Studies on the Production of 16β-methyl-11α,17α,21-trihydroxy-1,4-pregnadiene-3,20-dione from 16β-methyl-17α,21-dihydroxy-1,4-pregnadiene-3,20-dione-21-acetate by Absidia

, 2000
Xu Shi
openalex  

The Beckmann Rearrangement of the Acetoxime of Δ^5,16-Pregnadien-3β-o1-20-one Acetate with Boron Trifluoride

Journal of the American Chemical Society, 1959
J. Romo, A. Romo de Vivar
openaire   +2 more sources

[Studies on the production of 16 beta-methyl-11 alpha,17 alpha,21-trihydroxy-1,4-pregnadiene-3,20-dione from 16 beta-methyl-17 alpha,21-dihydroxy-1,4-pregnadiene-3,20-dione-21-acetate by Absidia].

, 2000
Xu Sw, Qiang Xu, Fa Yh
openalex  

[Biological activity of fludrocortisone (9alpha-fluoro-delta1,4-pregnadiene-11beta,17alpha, 21-trihydroxy-3,20-dione)].

, 1956
G Maffii, R Virga
openalex