NO133806B
(cs )
1976-03-22
NO751208L
(cs )
1970-05-23
US4044004A
(en )
1977-08-23
Total steroid synthesis employing substituted isoxazole derivatives
US2970147A
(en )
1961-01-31
3-hydroxy-nu-(heterocyclic-ethyl)-morphinans
IE861233L
(en )
1986-11-10
17-alpha-ethynyl steroid
US3781311A
(en )
1973-12-25
Novel preparation of trienic steroids
US3435030A
(en )
1969-03-25
17-alkenyl/alkynyl-5alpha-androst - 1 - ene-3beta,17beta-diols,esters thereof and interme-diates thereto
US2606197A
(en )
1952-08-05
Halosteroid acid derivatives and preparation of same
GB1416277A
(en )
1975-12-03
3-keto-7 a or beta-lower alkyl-delta5-steroids and process for preparing same
US3272801A
(en )
1966-09-13
Steroidal spiro-oxazolidinones
US3439022A
(en )
1969-04-15
Methylene-substituted-a-norgonanes
US3759961A
(en )
1973-09-18
Process for ethinylating 17-ketosteroids
US3337542A
(en )
1967-08-22
2-alkyl-2-[(optionally-substituted) amino-1-naphthyliden]ethylcyclopentane -1, 3-diones, 3-(optionallysubstituted)amino-14-hydroxyestratetraen-17-ones corresponding and derivatives thereof
US3359282A
(en )
1967-12-19
-3-oxa-5alpha-androstan-17beta-ols, esters corresponding and intermediates thereto
US3985771A
(en )
1976-10-12
Total steroid synthesis employing substituted isoxazole derivatives
US4582644A
(en )
1986-04-15
Epi-ethynylation process
US3325481A
(en )
1967-06-13
3-(optionally substituted)amino-estra-1, 3, 5(10), 8(9), 14-pentaen - 17 - ones and derivatives thereof
US3203966A
(en )
1965-08-31
17alpha-(hydrocarbon-substituted)-5alpha-androst-2-en-17beta-ols and esters thereof
US3856864A
(en )
1974-12-24
Synthesis of a-ring aromatic steroids
US3145200A
(en )
1964-08-18
Steroido[3.2-c]isoxazoles and preparation thereof
US2791585A
(en )
1957-05-07
Steroid alpha-halo ketals
US3455907A
(en )
1969-07-15
Process and intermediates for the manufacture of 3-keto-17-ketal steroids
US2969367A
(en )
1961-01-24
Process of isomerizing yofflmbane
NO124598B
(cs )
1972-05-08
US3697510A
(en )
1972-10-10
Novel preparation of pregnanes