We report a case of 5-day-old infant with a massive EDH, cephalohematoma, and a depressed fracture, which were secondary to a vacuum-assisted delivery and cured by ultrasound-guided needle aspiration and drainage. Neonatal EDH may be different from adult counterpart in that the former is more liquefied and is amenable to needle aspiration than the latter. Although needle aspiration is a blind procedure, addition of transcranial ultrasound not only ensures safety by visualizing the tip of the needle but also makes real-time evaluation of the residual hematoma volume possible.

Separation of a mixture of regio isomers of 6- and 7-carboxy-2-hydroxymethyl-1,4-benzodioxane (1) was successfully carried out by the fractional crystallization of their acetyl derivatives. Pure 1a (or 1b) gave an infusible product upon heating at 280 °C for 90 (or 30) min under reduced pressure, while a mixture of the regio isomers 1a and 1b polymerized to yield a high-molecular-weight spinnable polyester under the same conditions.

Die Nitrosouracile (I) gehen durch Ringverengung in die Diiminoimidazolidinone (II) über, die mit den Alkyliodiden (III) zu den Imidazolidinonen (IV) alkyliert werden.

35%iger Ausbeute die Aryl‐desazatoxof1avine (V), die auch durch Oxidation von (III) mit Azodicarbonsäurediethylester (DAD) zugänglich sind.