摘要:
A process for the production of N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,7,10-tetraazacyclododecane and N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,8,11-tetraazacyclotetradecane derivatives and their metal complexes is described.
摘要:
A process for the production of indole derivatives, which is characterized in that in the presence of phosphoric acid a substitution with an imine is performed, and intermediate products of this process and the production of these intermediate products are described.
摘要:
.beta.-carbolines of formula I ##STR1## wherein R=C.sub.1-5 alkylR.sup.4 =H, C.sub.1-5 alkyl or --(CH.sub.2).sub.n --OR with n=1 or 2 andR.sup.A =H, R, (CHR).sub.n --OR, OCH.sub.2 Ph, OPh, OPh(Cl,Br),OR,OCH.sub.2 Ph(Cl,Br) NRR, Cl or Br,wherein n and R have the above meanings and there are one or two R.sup.A 's are prepared, by dehydrogenation at reaction temperatures below ambient temperature in an inert solvent with tert-butyl hypochlorite and a tertiary amine.
摘要:
2-bromo-8-ergolinyl compounds of the formula ##STR1## wherein R.sup.8 is NH.sub.2, NH--CONEt.sub.2, CONH.sub.2, ##STR2## and ##STR3## wherein R.sup.1 =C.sub.1-4 -alkyl andR.sup.2 =C.sub.1-4 -alkyl and benzyl,R.sup.9 and R.sup.10 each mean hydrogen or, together, a bond, and the substituent R.sup.8 can be in the .alpha.- or .beta.- position, and their acid addition salts,can be prepared from corresponding 8-ergolinyl compounds and their acid addition salts by bromination with elemental bromine in the presence of hydrogen bromide in a halogenated hydrocarbon.