... For our syiithetic studies in the prostagliilidi11 chemistry' we ~iccdcd grcittcr iiliiOUIitS of IIIC~ hy I 4-c hloromc t hy 1-2 ... 'H NMR spectra were me:isured on a Brukcr AM 400 instrument in deutcriochloroform with tetra- methylsilane as internal standard, chemical shifts are ... Collect. ...