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Approaches to Total Synthesis of Heterocyclic Steroidal Systems
Author(s) -
Huisman H. O.
Publication year - 1971
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197104501
Subject(s) - sulfur , ring (chemistry) , chemistry , molecule , oxygen atom , nitrogen , carbon fibers , atom (system on chip) , unit (ring theory) , steroid , stereochemistry , nitrogen atom , crystallography , organic chemistry , materials science , mathematics , computer science , biochemistry , mathematics education , composite number , hormone , composite material , embedded system
In heterocyclic steroids the carbon atoms of the steroid skeleton (positions I to 17) are replaced in part by hetero atoms. The term generally denotes compounds containing one or two nitrogen, oxygen, and/or sulfur atoms. The part of the molecule containing the hetero atom is either introduced as a preformed unit or is constructed by stepwise synthesis. The examples given in the present article contain the hetero atoms in ring A, ring B, between rings A and B, and/or between rings C and D.
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