SU423293A3 - WAY OF OBTAINING 5a, 21-DIBROM-br-Fluorine derivatives of PrРЕgnan series - Google Patents

WAY OF OBTAINING 5a, 21-DIBROM-br-Fluorine derivatives of PrРЕgnan series

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Publication number
SU423293A3
SU423293A3 SU1790165A SU1790165A SU423293A3 SU 423293 A3 SU423293 A3 SU 423293A3 SU 1790165 A SU1790165 A SU 1790165A SU 1790165 A SU1790165 A SU 1790165A SU 423293 A3 SU423293 A3 SU 423293A3
Authority
SU
USSR - Soviet Union
Prior art keywords
series
prреgnan
dibrom
obtaining
way
Prior art date
Application number
SU1790165A
Other languages
Russian (ru)
Original Assignee
Мариа Скибиньска, Чеслава Данута Ксенжны, Романа Яворска , Тэрэса Ушицка Хорава
Иностранное предпри тие
Институт Пржемыслу Фармацевтичного
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Мариа Скибиньска, Чеслава Данута Ксенжны, Романа Яворска , Тэрэса Ушицка Хорава, Иностранное предпри тие, Институт Пржемыслу Фармацевтичного filed Critical Мариа Скибиньска, Чеслава Данута Ксенжны, Романа Яворска , Тэрэса Ушицка Хорава
Application granted granted Critical
Publication of SU423293A3 publication Critical patent/SU423293A3/en

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Description

Изобретение относитс  к способу получени  новых 5а-, 21-дибром-6р - фторпроизводных р да прегнана, которые могут быть иснользовавы как исходные соединени  в синтезе физиологическ1И активных веществ.The invention relates to a process for the preparation of new 5-, 21-dibromo-6p - fluorine derivatives of a series of pregnane, which can be used as starting compounds in the synthesis of physiological active substances.

Предлагаетс  основанный на известной реакции 21-Хромировани  стероидов р да прегнана способ получени  5а, 21-дибром-6р-фторпроизводных р да прегпана общей формулы IA method based on the known reaction of 21-chroming of steroids in a series of pregnana is proposed for preparing 5a, 21-dibromo-6p-fluorine derivatives of a series of pregpan of general formula I

CHjBlCHjBl

заключающийс  в том, что соединение общей формулы Пthe fact that the compound of the general formula P

10ten

2020

где RI - водород или гидроксил, свободный или этерифицированный низшей алифатической карбоновой кислотой, содержащей 1-5 атомов углерода;where RI is hydrogen or hydroxyl, free or esterified with a lower aliphatic carboxylic acid containing 1-5 carbon atoms;

R2 - водород, гидроксил «ли алкил с 1-5 атомами углерода или Ri и R2 вместе образуют изопронилидендиоксигруппу;R2 is hydrogen, hydroxyl "or alkyl with 1-5 carbon atoms or Ri and R2 together form an isopronylidenedioxy group;

Z - водород или ацил низшей алифатической карбоновой кислоты, содержащей 1-5 атомов углерода,Z is hydrogen or acyl lower aliphatic carboxylic acid containing 1-5 carbon atoms,

где RI, R2 и Z имеют выщеуказанные значеБИЯ , подвергают действию брома в присутствии кислого катализатора в среде галогеналкана и/или низшего алифатического спирта с последующим выделением целевого продукта известными приемами.where RI, R2 and Z have the above values, are exposed to bromine in the presence of an acidic catalyst in a halogen-alkane and / or lower aliphatic alcohol, followed by isolation of the target product by known methods.

В качестве галогеналкана используют преимущественно галогенпроизводное низшего алкана , например хлороформ или хлористый метилен, а в качестве низшего спирта - низший алифатический спирт с 1-3 атомами углерода , предпочтительно метанол.As the halogenated alkane, a halogeno-derivative of a lower alkane is preferably used, for example chloroform or methylene chloride, and as a lower alcohol, a lower aliphatic alcohol with 1 to 3 carbon atoms, preferably methanol.

Дл  инициировани  реакции бромировани  примен ют сухой хлористый водород ИЛИ его раствор в уксусной кислоте, возможно в приDry hydrogen chloride OR its solution in acetic acid may be used to initiate the bromination reaction;

SU1790165A 1971-05-28 1972-05-26 WAY OF OBTAINING 5a, 21-DIBROM-br-Fluorine derivatives of PrРЕgnan series SU423293A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL14844071A PL76715B1 (en) 1971-05-28 1971-05-28

Publications (1)

Publication Number Publication Date
SU423293A3 true SU423293A3 (en) 1974-04-05

Family

ID=19954504

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1790165A SU423293A3 (en) 1971-05-28 1972-05-26 WAY OF OBTAINING 5a, 21-DIBROM-br-Fluorine derivatives of PrРЕgnan series

Country Status (4)

Country Link
DD (1) DD96704A5 (en)
HU (1) HU165210B (en)
PL (1) PL76715B1 (en)
SU (1) SU423293A3 (en)

Also Published As

Publication number Publication date
HU165210B (en) 1974-07-27
PL76715B1 (en) 1975-02-28
DD96704A5 (en) 1973-04-05

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