77756-13-9Relevant articles and documents
SYNTHESIS OF 13C-LABELLED ESTROGEN ANALOGUES
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Page 20, (2010/02/08)
There is provided a method of producing novel 13C-labelled estrogen analogues. The method preferably proceeds via an intermediate A or B or which is a mixture of (A) or (B): wherein a13C atom is located at one or more of positions 1, 2, 3 or 4 and wherein R is an optionally substituted alkane, alkene, alkyne or aryl group. Preferably R is -CH2Ph. An alternative preferred intermediate compound is 13C-resorcinol.
Synthesis of Substituted 14-Crown-4 Compounds
Czech, Bronislaw P.,Zazulak, Wolodymyr,Kumar, Anand,Olsher, Uriel,Feinberg, Hadar,et al.
, p. 1389 - 1400 (2007/10/02)
Seventeen new substituted 14-crown-4 derivatives 3-10, 35-40, 42, 45 and 46 are described.A series of nine compounds 2-10 with two, three or four substituents in the 6- and/or 13-positions was synthesized in good yields from the appropriate diols and ditosylates using improved cyclization conditions.The solid state structures of 6,6,13,13-tetra(benzyloxymethyl)-14-crown-4 (8) and lithium thiocyanate complexes of trans- and cis-6,13-bis(spiro-2,2-dichlorocyclopropyl)-14-crown-4 (45) and (46), respectively, have been determined.
SYNTHESIS OF COMPOUND X, A NON-STEROIDAL CONSTITUENT OF FEMALE URINE, AND CONGENERS
Groen, M.B.,Leemhuis, J.
, p. 5043 - 5046 (2007/10/02)
The synthesis of trans-(+/-)- and (-)-3,4-bisdihydro-2-(3H)-furanone (1), a recently discovered constituent of female urine, and some related compounds of biological interest is described.
