11-Deoxy-11.alpha.-alkyl-PGE compounds from PGA compounds by lit
15-Deoxy-16-hydroxy-16-vinyl or cyclopropyl prostan-1-ols of the
19-nor-vitamin D compounds
1:1 copolymer of difluoromethylene oxide and tetrafluoroethylene
1:3 "mixed" polynitroethyl orthocarbonates from tris(2-fluoro-2,