11-Desoxy-16-aryl-.omega.-tetranorprostaglandins

11-Desoxy-16-aryloxy-.omega.-tetranorprostaglandins

11-Difluoromethylene steroids

11-Dioxy-cis-4,5-didehydro-PGF compounds

11-hydroxypregn-4-en-3-one-20-carbaldehyde and a method for its

11-Oxa-prostaglandin analogs

11-Substitute d-11-desoxy-pge analogues

11-Substituted prostaglandins

11-Substituted steroids and intermediates

11-Substituted-desA-pregnanes and derivatives thereof

11.alpha.-Amino-3.beta.-hydroxy-androstanes

11.alpha.-HOMO-PROSTANOIC ACIDS AND ESTERS

11.alpha.-Hydroxymethyl prostaglandins

11.alpha.-METHYLSUBSTITUTED PROSTAGLANDIN DERIVATIVES

11.beta.,15.beta.-PGF.sub.2 .sub..alpha. compounds

11.beta.,18-EPOX Y-9.alpha.-HALO-17,18-DIHYDROXY-3-OXO-17.alpha.

11.beta.-Alkyl-2-azaestratrienes and intermediates

11.beta.-Difluoromethyl and (E)- and (Z)-11-fluoromethylene ster

11.beta.-FLUOROANDROSTENES

11.beta.-Halo-9,12-unsubstituted-C.sub.19 -steroids