The efficient syntheses of 5-(2-hydroxyethyl)- and 5-(3-hydroxypropyl)-substituted pyrimidine derivatives bearing 2,3-dihydroxypropyl, acyclovir-, ganciclovir- and penciclovir-like side chains are reported. A synthetic approach that included the alkylation of an N-anionic-5-substituted pyrimidine intermediate (method A) provided the target acyclonucleosides in significantly higher overall yields in comparison to those obtained by method B using sylilation reaction. The phosphorylation assays of novel compounds as potential substrates for thymidine kinase of herpes simplex virus type 1 (HSV-1 TK) showed that solely pyrimidine 5-substituted acyclonucleosides with a penciclovir-like side chain acted as a fraudulent substrates of HSV-1 TK. Moreover, the uracil derivative with penciclovir-like side chain with less bulky 2-hydroxyethyl substituent at C-5 proved to be a better substrate than the corresponding one with a 3-hydroxypropyl substituent. Therefore, this acyclonucleoside was selected as a lead compound for the development of a positron emission tomography HSV-1 TK activity imaging agent.

INTRODUCTION Almost all individual antipsychotics are classified into the intermediate pregnancy risk category as no or limited data exist about human pregnancy outcomes. We presented the case of zuclopenthixol decanoate using in two successive pregnancies of the same woman, which had not been published in the available peer-reviewed literature. CASE REPORT A middle-age female subject who suffered from schizophrenia received zuclopenthixol decanoate injection during her two consecutive pregnancies. About four and a half months before diagnosis of the first pregnancy (to approximately 3.5 years after psychosis emergence), zuclopenthixol decanoate (400 mg every other week, im injection) was introduced to the treatment protocol (due to previous non-compliance with haloperidol and risperidone). A significant clinical improvement was achieved and the dose during pregnancy was reduced to 200 mg once monthly and maintained to date. In both pregnancies the women gave birth to healthy girls who have been developing normally until now, at their ages of 6 months and of 3.5 years. During pregnancy and after giving birth to children the mothers' psychiatric status and her social functioning were significantly improved and are still stable. Close monitoring of the mother's health, a multidisciplinary approach to both her treatment and the monitoring of pregnancies as well as the complete compliance with the prescribed drug protocol were likely to be crucial for the therapeutic success. CONCLUSION A favorable outcome of the present case suggests that the zuclopenthixol decanoate is a rational therapeutic option for pregnant women suffering from psychosis when the expected benefit exceed the potential risk, but a definitive evidence for its safety requires large, controlled studies.