The present invention relates to new WS7622A, B, C and D substances, derivatives thereof and {HEAD ~ pharmaceutical compositions} containing {TAIL ~ the new substances} as active ingredients 
The present invention relates to new WS7622A , B , C and D substances , derivatives thereof and { HEAD ~ pharmaceutical compositions } containing { TAIL ~ the new substances } as active ingredients
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH