NG-011 and NG-012, novel potentiators of nerve growth factor. II. The structure determination of NG-011 and NG-012.

NG-011 and NG-012, novel potentiators of nerve growth factor (NGF) were isolated from the culture broth of Penicillium verruculosum F-4542. The structures of NG-011 and NG-012 were elucidated by their spectral analysis and degradation experiments as shown in Fig. 1.