CH450406A - Procédé de synthèse d'un séco-stéroïde - Google Patents
Procédé de synthèse d'un séco-stéroïdeInfo
- Publication number
- CH450406A CH450406A CH384566A CH384566A CH450406A CH 450406 A CH450406 A CH 450406A CH 384566 A CH384566 A CH 384566A CH 384566 A CH384566 A CH 384566A CH 450406 A CH450406 A CH 450406A
- Authority
- CH
- Switzerland
- Prior art keywords
- seco
- steroid
- synthesis process
- synthesis
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/78—Ring systems having three or more relevant rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/565—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
- A61K31/567—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol substituted in position 17 alpha, e.g. mestranol, norethandrolone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/565—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
- A61K31/568—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol substituted in positions 10 and 13 by a chain having at least one carbon atom, e.g. androstanes, e.g. testosterone
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/185—Saturated compounds having only one carboxyl group and containing keto groups
- C07C59/215—Saturated compounds having only one carboxyl group and containing keto groups containing singly bound oxygen containing groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/42—Unsaturated compounds containing hydroxy or O-metal groups
- C07C59/46—Unsaturated compounds containing hydroxy or O-metal groups containing rings other than six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/76—Unsaturated compounds containing keto groups
- C07C59/80—Unsaturated compounds containing keto groups containing rings other than six-membered aromatic rings
- C07C59/82—Unsaturated compounds containing keto groups containing rings other than six-membered aromatic rings the keto group being part of a ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/76—Unsaturated compounds containing keto groups
- C07C59/90—Unsaturated compounds containing keto groups containing singly bound oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C62/30—Unsaturated compounds
- C07C62/38—Unsaturated compounds containing keto groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/94—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems condensed with rings other than six-membered or with ring systems containing such rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J15/00—Stereochemically pure steroids containing carbon, hydrogen, halogen or oxygen having a partially or totally inverted skeleton, e.g. retrosteroids, L-isomers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J61/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by contraction of only one ring by one or two atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J75/00—Processes for the preparation of steroids in general
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
- C07C2603/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
- C07C2603/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
- C07C2603/16—Benz[e]indenes; Hydrogenated benz[e]indenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR890184A FR1364556A (fr) | 1962-03-06 | 1962-03-06 | Nouveau procédé de synthèse de stéroïdes et de composés apparentés et produits utilisés dans ce procédé |
FR957460A FR1476509A (fr) | 1962-03-06 | 1963-12-17 | Nouveau procédé de syntbèse de stéroïdes et de composés apparentés et produits utilisés dans ce procédé |
FR960254A FR1512318A (fr) | 1962-03-06 | 1964-01-14 | Dérivés optiquement actifs de la 19-nor testostérone et procédé de préparation |
FR964517A FR91612E (fr) | 1962-03-06 | 1964-02-20 | Dérivés optiquement actifs de la 19-nor testostérone et procédé de préparation |
Publications (1)
Publication Number | Publication Date |
---|---|
CH450406A true CH450406A (fr) | 1968-01-31 |
Family
ID=27445406
Family Applications (10)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH275163A CH410934A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation d'un nouveau composé intermédiaire pour la synthèse de stéroïdes |
CH275263A CH424768A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de nouveaux composés intermédiaires pour la synthèse de stéroïdes et des composés apparentés |
CH275463A CH427782A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation d'un composé stéroïde |
CH275363A CH411858A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de nouveaux composés intermédiaires pour la synthèse des stéroïdes |
CH275063A CH433265A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de 1,5-dioxo-4-(2'-carboxy- ou carbalcoxy-éthyl)-7aB-méthyl-5,6,7,7a-tétrahydroindanes |
CH384566A CH450406A (fr) | 1962-03-06 | 1963-03-05 | Procédé de synthèse d'un séco-stéroïde |
CH1630264A CH436273A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630564A CH437272A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630464A CH436275A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630364A CH436274A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
Family Applications Before (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH275163A CH410934A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation d'un nouveau composé intermédiaire pour la synthèse de stéroïdes |
CH275263A CH424768A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de nouveaux composés intermédiaires pour la synthèse de stéroïdes et des composés apparentés |
CH275463A CH427782A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation d'un composé stéroïde |
CH275363A CH411858A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de nouveaux composés intermédiaires pour la synthèse des stéroïdes |
CH275063A CH433265A (fr) | 1962-03-06 | 1963-03-05 | Procédé de préparation de 1,5-dioxo-4-(2'-carboxy- ou carbalcoxy-éthyl)-7aB-méthyl-5,6,7,7a-tétrahydroindanes |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1630264A CH436273A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630564A CH437272A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630464A CH436275A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
CH1630364A CH436274A (fr) | 1962-03-06 | 1964-12-17 | Procédé de préparation de 13-alcoyl-stéroïdes |
Country Status (11)
Country | Link |
---|---|
US (1) | US3413314A (fr) |
BE (4) | BE657261A (fr) |
BR (5) | BR6347416D0 (fr) |
CH (10) | CH410934A (fr) |
DE (7) | DE1468530A1 (fr) |
DK (7) | DK121224B (fr) |
FR (3) | FR1476509A (fr) |
GB (11) | GB1042631A (fr) |
IL (6) | IL30736A (fr) |
NL (8) | NL6414755A (fr) |
SE (5) | SE310364B (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1526962A (fr) * | 1967-01-06 | 1968-05-31 | Roussel Uclaf | Nouveau procédé de préparation d'un composé gonatriénique et produits en résultant |
US3979458A (en) * | 1967-12-04 | 1976-09-07 | Syntex Corporation | Production of unsaturated carbocyclic ketones |
US3855247A (en) * | 1967-12-04 | 1974-12-17 | Syntex Corp | Production of unsaturated carbocyclic ketones |
US3541210A (en) * | 1968-04-10 | 1970-11-17 | Sandoz Ag | 17-alpha-(2-butyn-1-yl)-substituted steroids |
US3929876A (en) * | 1968-10-04 | 1975-12-30 | Hoffmann La Roche | Stereospecific total steroidal synthesis via substituted C/D-trans indanones |
US3927031A (en) * | 1968-10-04 | 1975-12-16 | Hoffmann La Roche | Stereospecific total steroidal synthesis via substituted C/D-trans indanones |
US3897460A (en) * | 1968-10-04 | 1975-07-29 | Hoffmann La Roche | 3{62 -Tertiarybutoxy-decahydro-benz{8 E{9 indenes |
FR2183555B1 (fr) * | 1972-05-10 | 1975-06-20 | Roussel Uclaf | |
US4158012A (en) * | 1978-06-19 | 1979-06-12 | Syntex (U.S.A.) Inc. | Steroid synthesis process using mixed anhydride |
US4234491A (en) | 1978-06-19 | 1980-11-18 | Syntex (U.S.A.) Inc. | Steroid synthesis process using mixed anhydride |
US4400524A (en) * | 1981-07-28 | 1983-08-23 | The Upjohn Company | Grignard reagents prepared from 5-halopentan-2-one propylene ketals |
US4900837A (en) * | 1982-05-18 | 1990-02-13 | University Of Florida | Brain-specific drug delivery of steroid sex hormones cleaved from pyridinium carboxylates and dihydro-pyridine carboxylate precursors |
US5567830A (en) * | 1994-02-14 | 1996-10-22 | Cocensys, Inc. | Process for synthesis of acetylenic carbinols |
DE19503327A1 (de) * | 1995-02-02 | 1996-08-08 | Basf Ag | Verfahren zur Herstellung von 5-Oxo-6-heptensäurealkylestern sowie neue Zwischenprodukte zu ihrer Herstellung |
IL119649A (en) * | 1995-11-30 | 2002-03-10 | Akzo Nobel Nv | Preparation of Cyclic Kills of History - 3 keto- (5) 10, (-9) 11 steroidadians |
ITUB20155260A1 (it) | 2015-10-30 | 2017-04-30 | Ind Chimica Srl | PROCESSO PER LA PREPARAZIONE DI 17?-idrossi-des-A-androst-9,10-en-5-one |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE632347A (fr) * | ||||
US2839537A (en) * | 1952-05-12 | 1958-06-17 | Ciba Pharm Prod Inc | Tricyclic diketone and process of manufacture |
US3019252A (en) * | 1959-06-18 | 1962-01-30 | Lab Francais Chimiotherapie | Process for the preparation of novel derivatives of cyclopentanonaphthalene and products obtained thereby |
US3115507A (en) * | 1960-01-22 | 1963-12-24 | Roussel Uclaf | New analogs of 19-nor-testosterone, their esters and process of preparation |
FR1363113A (fr) * | 1960-07-29 | 1964-06-12 | Roussel Uclaf | Nouveaux dérivés oestradiéniques |
FR1283951A (fr) * | 1960-12-28 | 1962-02-09 | Chimiotherapie Lab Franc | Nouveau dérivé propylé du phénanthrène et procédé de préparation |
-
0
- NL NL123143D patent/NL123143C/xx active
- NL NL122142D patent/NL122142C/xx active
- NL NL126395D patent/NL126395C/xx active
- NL NL122309D patent/NL122309C/xx active
- BE BE657260D patent/BE657260A/xx unknown
- BE BE657263D patent/BE657263A/xx unknown
- BE BE657262D patent/BE657262A/xx unknown
- BE BE657261D patent/BE657261A/xx unknown
-
1963
- 1963-03-05 CH CH275163A patent/CH410934A/fr unknown
- 1963-03-05 DE DE1963R0034608 patent/DE1468530A1/de active Granted
- 1963-03-05 DE DE1468529A patent/DE1468529C3/de not_active Expired
- 1963-03-05 DE DE1963R0034609 patent/DE1468531B1/de active Pending
- 1963-03-05 DE DE1518111A patent/DE1518111C3/de not_active Expired
- 1963-03-05 CH CH275263A patent/CH424768A/fr unknown
- 1963-03-05 CH CH275463A patent/CH427782A/fr unknown
- 1963-03-05 SE SE2412/63A patent/SE310364B/xx unknown
- 1963-03-05 CH CH275363A patent/CH411858A/fr unknown
- 1963-03-05 CH CH275063A patent/CH433265A/fr unknown
- 1963-03-05 CH CH384566A patent/CH450406A/fr unknown
- 1963-03-06 GB GB9030/63A patent/GB1042631A/en not_active Expired
- 1963-03-06 DK DK102963AA patent/DK121224B/da unknown
- 1963-03-06 GB GB27081/65A patent/GB1042632A/en not_active Expired
- 1963-03-06 DK DK102863AA patent/DK114131B/da unknown
- 1963-03-06 BR BR147416/63A patent/BR6347416D0/pt unknown
- 1963-03-06 GB GB27082/65A patent/GB1042633A/en not_active Expired
- 1963-03-06 DK DK102663AA patent/DK114687B/da unknown
- 1963-03-06 DK DK103063AA patent/DK111956B/da unknown
- 1963-12-17 FR FR957460A patent/FR1476509A/fr not_active Expired
-
1964
- 1964-01-14 FR FR960254A patent/FR1512318A/fr not_active Expired
- 1964-02-20 FR FR964517A patent/FR91612E/fr not_active Expired
- 1964-04-22 US US361872A patent/US3413314A/en not_active Expired - Lifetime
- 1964-06-12 DK DK295764AA patent/DK112032B/da unknown
- 1964-10-12 SE SE1225764A patent/SE319174B/xx unknown
- 1964-12-16 BR BR165402/64A patent/BR6465402D0/pt unknown
- 1964-12-16 BR BR165401/64A patent/BR6465401D0/pt unknown
- 1964-12-16 BR BR165403/64A patent/BR6465403D0/pt unknown
- 1964-12-17 IL IL30736A patent/IL30736A/xx unknown
- 1964-12-17 IL IL22635A patent/IL22635A/xx unknown
- 1964-12-17 IL IL30735A patent/IL30735A/en unknown
- 1964-12-17 GB GB51479/64A patent/GB1096762A/en not_active Expired
- 1964-12-17 NL NL6414755A patent/NL6414755A/xx unknown
- 1964-12-17 DE DE19641468895 patent/DE1468895A1/de not_active Withdrawn
- 1964-12-17 NL NL6414756A patent/NL6414756A/xx unknown
- 1964-12-17 GB GB51480/64A patent/GB1096763A/en not_active Expired
- 1964-12-17 CH CH1630264A patent/CH436273A/fr unknown
- 1964-12-17 GB GB36203/66A patent/GB1096768A/en not_active Expired
- 1964-12-17 SE SE15301/64D patent/SE313306B/xx unknown
- 1964-12-17 GB GB51481/64A patent/GB1057117A/en not_active Expired
- 1964-12-17 GB GB36202/66A patent/GB1096767A/en not_active Expired
- 1964-12-17 CH CH1630564A patent/CH437272A/fr unknown
- 1964-12-17 IL IL22636A patent/IL22636A/xx unknown
- 1964-12-17 CH CH1630464A patent/CH436275A/fr unknown
- 1964-12-17 DE DE19641468896 patent/DE1468896A1/de active Pending
- 1964-12-17 IL IL22637A patent/IL22637A/xx unknown
- 1964-12-17 IL IL22638A patent/IL22638A/xx unknown
- 1964-12-17 NL NL6414702A patent/NL6414702A/xx unknown
- 1964-12-17 GB GB36333/67A patent/GB1096771A/en not_active Expired
- 1964-12-17 GB GB36204/66A patent/GB1096769A/en not_active Expired
- 1964-12-17 DK DK618764A patent/DK144794C/da not_active IP Right Cessation
- 1964-12-17 SE SE15298/64A patent/SE309038B/xx unknown
- 1964-12-17 DK DK618564AA patent/DK127062B/da unknown
- 1964-12-17 NL NL6414764A patent/NL6414764A/xx unknown
- 1964-12-17 SE SE15299/64A patent/SE302301B/xx unknown
- 1964-12-17 CH CH1630364A patent/CH436274A/fr unknown
- 1964-12-17 DE DE1468897A patent/DE1468897C3/de not_active Expired
- 1964-12-17 GB GB51478/64A patent/GB1096761A/en not_active Expired
-
1965
- 1965-12-16 BR BR165404/65A patent/BR6565404D0/pt unknown
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1383778A (fr) | Procédé d'obtention de capsules minuscules et capsules obtenues par ce procédé | |
CH450406A (fr) | Procédé de synthèse d'un séco-stéroïde | |
CH440256A (fr) | Procédé de préparation d'un nitrile | |
FR1384178A (fr) | Procédé d'obtention de pigments | |
FR1375434A (fr) | Procédé de synthèse de l'urée | |
CH419085A (fr) | Procédé d'Alcoylation de Cétones | |
BE630379A (fr) | Procédé de production d'aryl-3 halogéno-4 pyridazones-6 | |
FR1355220A (fr) | Procédé de production d'un dérivé nouveau de la pyridazone | |
FR1334008A (fr) | Procédé d'empaquetage | |
FR1360481A (fr) | Procédé de production d'oléfines fluorées | |
FR1321013A (fr) | Procédé de préparation d'une cobaltiprotoporphyrine | |
FR1435758A (fr) | Procédé de production d'un polyester | |
FR1347854A (fr) | Procédé de production d'hexachlorocyclopentadiène | |
FR1366487A (fr) | Procédé de synthèse d'urée | |
CH414634A (fr) | Procédé de préparation d'un dérivé du dibenzocyclophetadiène | |
FR1364410A (fr) | Procédé d'estérification de polyoxyméthylènes | |
FR1386540A (fr) | Procédé de synthèse de l'urée | |
CH411857A (fr) | Procédé de préparation d'un 19-nor-stéroïde | |
FR1359487A (fr) | Perfectionnements à un procédé de formation d'agglomérés | |
FR1382931A (fr) | Procédé perfectionné pour la synthèse de l'urée | |
FR1331448A (fr) | Procédé d'hydroxyalcoylation | |
CH426796A (fr) | Procédé de préparation d'un nouveau 17-méthyl-stéroïde | |
FR1325850A (fr) | Procédé d'obtention d'octachlorocyclopentène | |
BE617664A (fr) | Procédé de préparation d'un hémostaticum. | |
FR1331020A (fr) | Procédé de production d'époxy-éthers |